diff --git a/package.json b/package.json
index becf1d3..e9ecde3 100644
--- a/package.json
+++ b/package.json
@@ -20,9 +20,9 @@
     "retext-smartypants": "^3.0.1"
   },
   "devDependencies": {
-    "ava": "^0.23.0",
-    "codecov": "^2.3.0",
-    "nyc": "^11.1.0",
+    "ava": "^0.24.0",
+    "codecov": "^3.0.0",
+    "nyc": "^11.4.1",
     "reshape": "^0.4.0",
     "rewire": "^3.0.0",
     "snazzy": "^7.0.0",
diff --git a/yarn.lock b/yarn.lock
index 70fac23..64bdf19 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -99,19 +99,19 @@ amdefine@>=0.0.4:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
 
-ansi-align@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/ansi-align/-/ansi-align-1.1.0.tgz#2f0c1658829739add5ebb15e6b0c6e3423f016ba"
+ansi-align@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-align/-/ansi-align-2.0.0.tgz#c36aeccba563b89ceb556f3690f0b1d9e3547f7f"
   dependencies:
-    string-width "^1.0.1"
+    string-width "^2.0.0"
 
 ansi-escapes@^1.1.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-1.4.0.tgz#d3a8a83b319aa67793662b13e761c7911422306e"
 
-ansi-escapes@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-2.0.0.tgz#5bae52be424878dd9783e8910e3fc2922e83c81b"
+ansi-escapes@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.0.0.tgz#ec3e8b4e9f8064fc02c3ac9b65f1c275bda8ef92"
 
 ansi-regex@^2.0.0:
   version "2.1.1"
@@ -275,15 +275,15 @@ ava-init@^0.2.0:
     read-pkg-up "^2.0.0"
     write-pkg "^2.0.0"
 
-ava@^0.22.0:
-  version "0.22.0"
-  resolved "https://registry.yarnpkg.com/ava/-/ava-0.22.0.tgz#4c28a1fdef7e749ba0c8131ac18a7ca489eef049"
+ava@^0.24.0:
+  version "0.24.0"
+  resolved "https://registry.yarnpkg.com/ava/-/ava-0.24.0.tgz#dd0ab33a0b3ad2ac582f55e9a61caf8bcf7a9af1"
   dependencies:
     "@ava/babel-preset-stage-4" "^1.1.0"
     "@ava/babel-preset-transform-test-files" "^3.0.0"
     "@ava/write-file-atomic" "^2.2.0"
     "@concordance/react" "^1.0.0"
-    ansi-escapes "^2.0.0"
+    ansi-escapes "^3.0.0"
     ansi-styles "^3.1.0"
     arr-flatten "^1.0.1"
     array-union "^1.0.1"
@@ -292,6 +292,8 @@ ava@^0.22.0:
     auto-bind "^1.1.0"
     ava-init "^0.2.0"
     babel-core "^6.17.0"
+    babel-generator "^6.26.0"
+    babel-plugin-syntax-object-rest-spread "^6.13.0"
     bluebird "^3.0.0"
     caching-transform "^1.0.0"
     chalk "^2.0.1"
@@ -308,7 +310,7 @@ ava@^0.22.0:
     convert-source-map "^1.2.0"
     core-assert "^0.2.0"
     currently-unhandled "^0.4.1"
-    debug "^2.2.0"
+    debug "^3.0.1"
     dot-prop "^4.1.0"
     empower-core "^0.6.1"
     equal-length "^1.0.0"
@@ -325,7 +327,7 @@ ava@^0.22.0:
     is-ci "^1.0.7"
     is-generator-fn "^1.0.0"
     is-obj "^1.0.0"
-    is-observable "^0.2.0"
+    is-observable "^1.0.0"
     is-promise "^2.1.0"
     js-yaml "^3.8.2"
     last-line-stream "^1.0.0"
@@ -345,20 +347,21 @@ ava@^0.22.0:
     package-hash "^2.0.0"
     pkg-conf "^2.0.0"
     plur "^2.0.0"
-    pretty-ms "^2.0.0"
+    pretty-ms "^3.0.0"
     require-precompiled "^0.1.0"
     resolve-cwd "^2.0.0"
     safe-buffer "^5.1.1"
+    semver "^5.4.1"
     slash "^1.0.0"
-    source-map-support "^0.4.0"
-    stack-utils "^1.0.0"
+    source-map-support "^0.5.0"
+    stack-utils "^1.0.1"
     strip-ansi "^4.0.0"
     strip-bom-buf "^1.0.0"
-    supports-color "^4.0.0"
+    supports-color "^5.0.0"
     time-require "^0.1.2"
     trim-off-newlines "^1.0.1"
     unique-temp-dir "^1.0.0"
-    update-notifier "^2.1.0"
+    update-notifier "^2.3.0"
 
 aws-sign2@~0.6.0:
   version "0.6.0"
@@ -376,6 +379,14 @@ babel-code-frame@^6.16.0, babel-code-frame@^6.22.0:
     esutils "^2.0.2"
     js-tokens "^3.0.0"
 
+babel-code-frame@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
+  dependencies:
+    chalk "^1.1.3"
+    esutils "^2.0.2"
+    js-tokens "^3.0.2"
+
 babel-core@^6.17.0, babel-core@^6.24.0:
   version "6.24.0"
   resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.24.0.tgz#8f36a0a77f5c155aed6f920b844d23ba56742a02"
@@ -400,6 +411,30 @@ babel-core@^6.17.0, babel-core@^6.24.0:
     slash "^1.0.0"
     source-map "^0.5.0"
 
+babel-core@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.26.0.tgz#af32f78b31a6fcef119c87b0fd8d9753f03a0bb8"
+  dependencies:
+    babel-code-frame "^6.26.0"
+    babel-generator "^6.26.0"
+    babel-helpers "^6.24.1"
+    babel-messages "^6.23.0"
+    babel-register "^6.26.0"
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    convert-source-map "^1.5.0"
+    debug "^2.6.8"
+    json5 "^0.5.1"
+    lodash "^4.17.4"
+    minimatch "^3.0.4"
+    path-is-absolute "^1.0.1"
+    private "^0.1.7"
+    slash "^1.0.0"
+    source-map "^0.5.6"
+
 babel-generator@^6.1.0, babel-generator@^6.18.0, babel-generator@^6.24.0:
   version "6.24.0"
   resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.24.0.tgz#eba270a8cc4ce6e09a61be43465d7c62c1f87c56"
@@ -413,6 +448,19 @@ babel-generator@^6.1.0, babel-generator@^6.18.0, babel-generator@^6.24.0:
     source-map "^0.5.0"
     trim-right "^1.0.1"
 
+babel-generator@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.26.0.tgz#ac1ae20070b79f6e3ca1d3269613053774f20dc5"
+  dependencies:
+    babel-messages "^6.23.0"
+    babel-runtime "^6.26.0"
+    babel-types "^6.26.0"
+    detect-indent "^4.0.0"
+    jsesc "^1.3.0"
+    lodash "^4.17.4"
+    source-map "^0.5.6"
+    trim-right "^1.0.1"
+
 babel-helper-builder-binary-assignment-operator-visitor@^6.22.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-helper-builder-binary-assignment-operator-visitor/-/babel-helper-builder-binary-assignment-operator-visitor-6.22.0.tgz#29df56be144d81bdeac08262bfa41d2c5e91cdcd"
@@ -487,6 +535,13 @@ babel-helpers@^6.23.0:
     babel-runtime "^6.22.0"
     babel-template "^6.23.0"
 
+babel-helpers@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helpers/-/babel-helpers-6.24.1.tgz#3471de9caec388e5c850e597e58a26ddf37602b2"
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+
 babel-messages@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-messages/-/babel-messages-6.23.0.tgz#f3cdf4703858035b2a2951c6ec5edf6c62f2630e"
@@ -519,6 +574,10 @@ babel-plugin-syntax-exponentiation-operator@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-exponentiation-operator/-/babel-plugin-syntax-exponentiation-operator-6.13.0.tgz#9ee7e8337290da95288201a6a57f4170317830de"
 
+babel-plugin-syntax-object-rest-spread@^6.13.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz#fd6536f2bce13836ffa3a5458c4903a597bb3bf5"
+
 babel-plugin-syntax-trailing-function-commas@^6.20.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-trailing-function-commas/-/babel-plugin-syntax-trailing-function-commas-6.22.0.tgz#ba0360937f8d06e40180a43fe0d5616fff532cf3"
@@ -531,6 +590,16 @@ babel-plugin-transform-async-to-generator@^6.16.0:
     babel-plugin-syntax-async-functions "^6.8.0"
     babel-runtime "^6.22.0"
 
+babel-plugin-transform-es2015-block-scoping@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-block-scoping/-/babel-plugin-transform-es2015-block-scoping-6.26.0.tgz#d70f5299c1308d05c12f463813b0a09e73b1895f"
+  dependencies:
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    lodash "^4.17.4"
+
 babel-plugin-transform-es2015-destructuring@^6.19.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-destructuring/-/babel-plugin-transform-es2015-destructuring-6.23.0.tgz#997bb1f1ab967f682d2b0876fe358d60e765c56d"
@@ -614,6 +683,18 @@ babel-register@^6.24.0:
     mkdirp "^0.5.1"
     source-map-support "^0.4.2"
 
+babel-register@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-register/-/babel-register-6.26.0.tgz#6ed021173e2fcb486d7acb45c6009a856f647071"
+  dependencies:
+    babel-core "^6.26.0"
+    babel-runtime "^6.26.0"
+    core-js "^2.5.0"
+    home-or-tmp "^2.0.0"
+    lodash "^4.17.4"
+    mkdirp "^0.5.1"
+    source-map-support "^0.4.15"
+
 babel-runtime@^6.22.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.23.0.tgz#0a9489f144de70efb3ce4300accdb329e2fc543b"
@@ -621,6 +702,13 @@ babel-runtime@^6.22.0:
     core-js "^2.4.0"
     regenerator-runtime "^0.10.0"
 
+babel-runtime@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
+  dependencies:
+    core-js "^2.4.0"
+    regenerator-runtime "^0.11.0"
+
 babel-template@^6.16.0, babel-template@^6.22.0, babel-template@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.23.0.tgz#04d4f270adbb3aa704a8143ae26faa529238e638"
@@ -631,6 +719,16 @@ babel-template@^6.16.0, babel-template@^6.22.0, babel-template@^6.23.0:
     babylon "^6.11.0"
     lodash "^4.2.0"
 
+babel-template@^6.24.1, babel-template@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.26.0.tgz#de03e2d16396b069f46dd9fff8521fb1a0e35e02"
+  dependencies:
+    babel-runtime "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    lodash "^4.17.4"
+
 babel-traverse@^6.18.0, babel-traverse@^6.22.0, babel-traverse@^6.23.0, babel-traverse@^6.23.1:
   version "6.23.1"
   resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.23.1.tgz#d3cb59010ecd06a97d81310065f966b699e14f48"
@@ -645,6 +743,20 @@ babel-traverse@^6.18.0, babel-traverse@^6.22.0, babel-traverse@^6.23.0, babel-tr
     invariant "^2.2.0"
     lodash "^4.2.0"
 
+babel-traverse@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.26.0.tgz#46a9cbd7edcc62c8e5c064e2d2d8d0f4035766ee"
+  dependencies:
+    babel-code-frame "^6.26.0"
+    babel-messages "^6.23.0"
+    babel-runtime "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    debug "^2.6.8"
+    globals "^9.18.0"
+    invariant "^2.2.2"
+    lodash "^4.17.4"
+
 babel-types@^6.18.0, babel-types@^6.22.0, babel-types@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.23.0.tgz#bb17179d7538bad38cd0c9e115d340f77e7e9acf"
@@ -654,10 +766,23 @@ babel-types@^6.18.0, babel-types@^6.22.0, babel-types@^6.23.0:
     lodash "^4.2.0"
     to-fast-properties "^1.0.1"
 
-babylon@^6.1.0, babylon@^6.11.0, babylon@^6.15.0, babylon@^6.17.4:
+babel-types@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.26.0.tgz#a3b073f94ab49eb6fa55cd65227a334380632497"
+  dependencies:
+    babel-runtime "^6.26.0"
+    esutils "^2.0.2"
+    lodash "^4.17.4"
+    to-fast-properties "^1.0.3"
+
+babylon@^6.1.0, babylon@^6.11.0, babylon@^6.15.0:
   version "6.17.4"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.17.4.tgz#3e8b7402b88d22c3423e137a1577883b15ff869a"
 
+babylon@^6.18.0:
+  version "6.18.0"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
+
 bail@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/bail/-/bail-1.0.1.tgz#912579de8b391aadf3c5fdf4cd2a0fc225df3bc2"
@@ -666,6 +791,10 @@ balanced-match@^0.4.1, balanced-match@^0.4.2:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-0.4.2.tgz#cb3f3e3c732dc0f01ee70b403f302e61d7709838"
 
+balanced-match@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
+
 bcrypt-pbkdf@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz#63bc5dcb61331b92bc05fd528953c33462a06f8d"
@@ -692,17 +821,17 @@ boom@2.x.x:
   dependencies:
     hoek "2.x.x"
 
-boxen@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/boxen/-/boxen-1.0.0.tgz#b2694baf1f605f708ff0177c12193b22f29aaaab"
+boxen@^1.2.1:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/boxen/-/boxen-1.3.0.tgz#55c6c39a8ba58d9c61ad22cd877532deb665a20b"
   dependencies:
-    ansi-align "^1.1.0"
+    ansi-align "^2.0.0"
     camelcase "^4.0.0"
-    chalk "^1.1.1"
+    chalk "^2.0.1"
     cli-boxes "^1.0.0"
     string-width "^2.0.0"
-    term-size "^0.1.0"
-    widest-line "^1.0.0"
+    term-size "^1.2.0"
+    widest-line "^2.0.0"
 
 brace-expansion@^1.0.0:
   version "1.1.6"
@@ -711,6 +840,13 @@ brace-expansion@^1.0.0:
     balanced-match "^0.4.1"
     concat-map "0.0.1"
 
+brace-expansion@^1.1.7:
+  version "1.1.8"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.8.tgz#c07b211c7c952ec1f8efd51a77ef0d1d3990a292"
+  dependencies:
+    balanced-match "^1.0.0"
+    concat-map "0.0.1"
+
 braces@^1.8.2:
   version "1.8.5"
   resolved "https://registry.yarnpkg.com/braces/-/braces-1.8.5.tgz#ba77962e12dff969d6b76711e914b737857bf6a7"
@@ -784,10 +920,6 @@ camelcase@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
 
-camelcase@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
-
 camelcase@^4.0.0, camelcase@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
@@ -922,12 +1054,12 @@ cliui@^2.1.0:
     right-align "^0.1.1"
     wordwrap "0.0.2"
 
-cliui@^3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
+cliui@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-4.0.0.tgz#743d4650e05f36d1ed2575b59638d87322bfbbcc"
   dependencies:
-    string-width "^1.0.1"
-    strip-ansi "^3.0.1"
+    string-width "^2.1.1"
+    strip-ansi "^4.0.0"
     wrap-ansi "^2.0.0"
 
 clone@^1.0.2:
@@ -966,9 +1098,9 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
-codecov@^2.3.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/codecov/-/codecov-2.3.0.tgz#ad25a2c6e0442d13740d9d4ddbb9a3e2714330f4"
+codecov@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/codecov/-/codecov-3.0.0.tgz#c273b8c4f12945723e8dc9d25803d89343e5f28e"
   dependencies:
     argv "0.0.2"
     request "2.81.0"
@@ -1079,6 +1211,10 @@ convert-source-map@^1.1.0, convert-source-map@^1.2.0, convert-source-map@^1.3.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.0.tgz#9acd70851c6d5dfdd93d9282e5edf94a03ff46b5"
 
+convert-source-map@^1.5.0:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.1.tgz#b8278097b9bc229365de5c62cf5fcaed8b5599e5"
+
 convert-to-spaces@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/convert-to-spaces/-/convert-to-spaces-1.0.2.tgz#7e3e48bbe6d997b1417ddca2868204b4d3d85715"
@@ -1094,6 +1230,10 @@ core-js@^2.0.0, core-js@^2.4.0:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.4.1.tgz#4de911e667b0eae9124e34254b53aea6fc618d3e"
 
+core-js@^2.5.0:
+  version "2.5.3"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.3.tgz#8acc38345824f16d8365b7c9b4259168e8ed603e"
+
 core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
@@ -1104,13 +1244,6 @@ create-error-class@^3.0.0:
   dependencies:
     capture-stack-trace "^1.0.0"
 
-cross-spawn-async@^2.1.1:
-  version "2.2.5"
-  resolved "https://registry.yarnpkg.com/cross-spawn-async/-/cross-spawn-async-2.2.5.tgz#845ff0c0834a3ded9d160daca6d390906bb288cc"
-  dependencies:
-    lru-cache "^4.0.0"
-    which "^1.2.8"
-
 cross-spawn@^4, cross-spawn@^4.0.0:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-4.0.2.tgz#7b9247621c23adfdd3856004a823cbe397424d41"
@@ -1118,6 +1251,14 @@ cross-spawn@^4, cross-spawn@^4.0.0:
     lru-cache "^4.0.1"
     which "^1.2.9"
 
+cross-spawn@^5.0.1:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
+  dependencies:
+    lru-cache "^4.0.1"
+    shebang-command "^1.2.0"
+    which "^1.2.9"
+
 cryptiles@2.x.x:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-2.0.5.tgz#3bdfecdc608147c1c67202fa291e7dca59eaa3b8"
@@ -1214,12 +1355,24 @@ debug@2.2.0:
   dependencies:
     ms "0.7.1"
 
-debug@^2.1.1, debug@^2.2.0, debug@^2.6.3:
+debug@^2.1.1, debug@^2.2.0:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.3.tgz#0f7eb8c30965ec08c72accfa0130c8b79984141d"
   dependencies:
     ms "0.7.2"
 
+debug@^2.6.8:
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
+  dependencies:
+    ms "2.0.0"
+
+debug@^3.0.1, debug@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  dependencies:
+    ms "2.0.0"
+
 decamelize@^1.0.0, decamelize@^1.1.1, decamelize@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
@@ -1599,17 +1752,6 @@ event-emitter@~0.3.5:
     d "1"
     es5-ext "~0.10.14"
 
-execa@^0.4.0:
-  version "0.4.0"
-  resolved "https://registry.yarnpkg.com/execa/-/execa-0.4.0.tgz#4eb6467a36a095fabb2970ff9d5e3fb7bce6ebc3"
-  dependencies:
-    cross-spawn-async "^2.1.1"
-    is-stream "^1.1.0"
-    npm-run-path "^1.0.0"
-    object-assign "^4.0.1"
-    path-key "^1.0.0"
-    strip-eof "^1.0.0"
-
 execa@^0.5.0:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/execa/-/execa-0.5.1.tgz#de3fb85cb8d6e91c85bcbceb164581785cb57b36"
@@ -1622,6 +1764,18 @@ execa@^0.5.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
+execa@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-0.7.0.tgz#944becd34cc41ee32a63a9faf27ad5a65fc59777"
+  dependencies:
+    cross-spawn "^5.0.1"
+    get-stream "^3.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
 exit-hook@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/exit-hook/-/exit-hook-1.1.1.tgz#f05ca233b48c05d54fff07765df8507e95c02ff8"
@@ -1893,10 +2047,20 @@ glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+global-dirs@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/global-dirs/-/global-dirs-0.1.1.tgz#b319c0dd4607f353f3be9cca4c72fc148c49f445"
+  dependencies:
+    ini "^1.3.4"
+
 globals@^9.0.0, globals@^9.14.0:
   version "9.17.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.17.0.tgz#0c0ca696d9b9bb694d2e5470bd37777caad50286"
 
+globals@^9.18.0:
+  version "9.18.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
+
 globby@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/globby/-/globby-5.0.0.tgz#ebd84667ca0dbb330b99bcfc68eac2bc54370e0d"
@@ -2058,6 +2222,10 @@ ignore@^3.0.11, ignore@^3.0.9, ignore@^3.2.0:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.2.6.tgz#26e8da0644be0bb4cb39516f6c79f0e0f4ffe48c"
 
+import-lazy@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/import-lazy/-/import-lazy-2.1.0.tgz#05698e3d45c88e8d7e9d92cb0584e77f096f3e43"
+
 import-local@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/import-local/-/import-local-0.1.1.tgz#b1179572aacdc11c6a91009fb430dbcab5f668a8"
@@ -2098,6 +2266,10 @@ inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.1:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
 
+ini@^1.3.4:
+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
+
 ini@~1.3.0:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.4.tgz#0537cb79daf59b59a1a517dff706c86ec039162e"
@@ -2124,7 +2296,7 @@ interpret@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.0.2.tgz#f4f623f0bb7122f15f5717c8e254b8161b5c5b2d"
 
-invariant@^2.2.0:
+invariant@^2.2.0, invariant@^2.2.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.2.tgz#9e1f56ac0acdb6bf303306f338be3b204ae60360"
   dependencies:
@@ -2198,7 +2370,7 @@ is-extglob@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-1.0.0.tgz#ac468177c4943405a092fc8f29760c6ffc6206c0"
 
-is-finite@^1.0.0, is-finite@^1.0.1:
+is-finite@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-finite/-/is-finite-1.0.2.tgz#cc6677695602be550ef11e8b4aa6305342b6d0aa"
   dependencies:
@@ -2224,6 +2396,13 @@ is-glob@^2.0.0, is-glob@^2.0.1:
   dependencies:
     is-extglob "^1.0.0"
 
+is-installed-globally@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/is-installed-globally/-/is-installed-globally-0.1.0.tgz#0dfd98f5a9111716dd535dda6492f67bf3d25a80"
+  dependencies:
+    global-dirs "^0.1.0"
+    is-path-inside "^1.0.0"
+
 is-my-json-valid@^2.10.0:
   version "2.16.0"
   resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.16.0.tgz#f079dd9bfdae65ee2038aae8acbc86ab109e3693"
@@ -2253,6 +2432,12 @@ is-observable@^0.2.0:
   dependencies:
     symbol-observable "^0.2.2"
 
+is-observable@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-observable/-/is-observable-1.1.0.tgz#b3e986c8f44de950867cab5403f5a3465005975e"
+  dependencies:
+    symbol-observable "^1.1.0"
+
 is-path-cwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-path-cwd/-/is-path-cwd-1.0.0.tgz#d225ec23132e89edd38fda767472e62e65f1106d"
@@ -2361,46 +2546,46 @@ istanbul-lib-coverage@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-1.1.1.tgz#73bfb998885299415c93d38a3e9adf784a77a9da"
 
-istanbul-lib-hook@^1.0.7:
-  version "1.0.7"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-hook/-/istanbul-lib-hook-1.0.7.tgz#dd6607f03076578fe7d6f2a630cf143b49bacddc"
+istanbul-lib-hook@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-hook/-/istanbul-lib-hook-1.1.0.tgz#8538d970372cb3716d53e55523dd54b557a8d89b"
   dependencies:
     append-transform "^0.4.0"
 
-istanbul-lib-instrument@^1.7.4:
-  version "1.7.5"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.7.5.tgz#adb596f8f0cb8b95e739206351a38a586af21b1e"
+istanbul-lib-instrument@^1.9.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.9.1.tgz#250b30b3531e5d3251299fdd64b0b2c9db6b558e"
   dependencies:
     babel-generator "^6.18.0"
     babel-template "^6.16.0"
     babel-traverse "^6.18.0"
     babel-types "^6.18.0"
-    babylon "^6.17.4"
+    babylon "^6.18.0"
     istanbul-lib-coverage "^1.1.1"
     semver "^5.3.0"
 
-istanbul-lib-report@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-report/-/istanbul-lib-report-1.1.1.tgz#f0e55f56655ffa34222080b7a0cd4760e1405fc9"
+istanbul-lib-report@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-report/-/istanbul-lib-report-1.1.2.tgz#922be27c13b9511b979bd1587359f69798c1d425"
   dependencies:
     istanbul-lib-coverage "^1.1.1"
     mkdirp "^0.5.1"
     path-parse "^1.0.5"
     supports-color "^3.1.2"
 
-istanbul-lib-source-maps@^1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-source-maps/-/istanbul-lib-source-maps-1.2.1.tgz#a6fe1acba8ce08eebc638e572e294d267008aa0c"
+istanbul-lib-source-maps@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-source-maps/-/istanbul-lib-source-maps-1.2.2.tgz#750578602435f28a0c04ee6d7d9e0f2960e62c1c"
   dependencies:
-    debug "^2.6.3"
+    debug "^3.1.0"
     istanbul-lib-coverage "^1.1.1"
     mkdirp "^0.5.1"
     rimraf "^2.6.1"
     source-map "^0.5.3"
 
-istanbul-reports@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/istanbul-reports/-/istanbul-reports-1.1.1.tgz#042be5c89e175bc3f86523caab29c014e77fee4e"
+istanbul-reports@^1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/istanbul-reports/-/istanbul-reports-1.1.3.tgz#3b9e1e8defb6d18b1d425da8e8b32c5a163f2d10"
   dependencies:
     handlebars "^4.0.3"
 
@@ -2435,6 +2620,10 @@ js-tokens@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.1.tgz#08e9f132484a2c45a30907e9dc4d5567b7f114d7"
 
+js-tokens@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
+
 js-yaml@^3.5.1, js-yaml@^3.8.2:
   version "3.8.3"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.8.3.tgz#33a05ec481c850c8875929166fe1beb61c728766"
@@ -2524,10 +2713,6 @@ lazy-cache@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
 
-lazy-req@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/lazy-req/-/lazy-req-2.0.0.tgz#c9450a363ecdda2e6f0c70132ad4f37f8f06f2b4"
-
 lcid@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
@@ -2621,7 +2806,7 @@ lodash.uniq@^4.3.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
 
-lodash@^4.0.0, lodash@^4.2.0, lodash@^4.3.0:
+lodash@^4.0.0, lodash@^4.17.4, lodash@^4.2.0, lodash@^4.3.0:
   version "4.17.4"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
 
@@ -2646,7 +2831,7 @@ lowercase-keys@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lowercase-keys/-/lowercase-keys-1.0.0.tgz#4e3366b39e7f5457e35f1324bdf6f88d0bfc7306"
 
-lru-cache@^4.0.0, lru-cache@^4.0.1:
+lru-cache@^4.0.1:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.0.2.tgz#1d17679c069cda5d040991a09dbc2c0db377e55e"
   dependencies:
@@ -2772,6 +2957,12 @@ minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.3:
   dependencies:
     brace-expansion "^1.0.0"
 
+minimatch@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
+  dependencies:
+    brace-expansion "^1.1.7"
+
 minimist@0.0.8, minimist@~0.0.1:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
@@ -2794,7 +2985,7 @@ ms@0.7.2:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"
 
-ms@^2.0.0:
+ms@2.0.0, ms@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
@@ -2872,12 +3063,6 @@ normalize-url@^1.4.0:
     query-string "^4.1.0"
     sort-keys "^1.0.0"
 
-npm-run-path@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-1.0.0.tgz#f5c32bf595fe81ae927daec52e82f8b000ac3c8f"
-  dependencies:
-    path-key "^1.0.0"
-
 npm-run-path@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
@@ -2901,9 +3086,9 @@ number-is-nan@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
 
-nyc@^11.1.0:
-  version "11.1.0"
-  resolved "https://registry.yarnpkg.com/nyc/-/nyc-11.1.0.tgz#d6b3c5e16892a25af63138ba484676aa8a22eda7"
+nyc@^11.4.1:
+  version "11.4.1"
+  resolved "https://registry.yarnpkg.com/nyc/-/nyc-11.4.1.tgz#13fdf7e7ef22d027c61d174758f6978a68f4f5e5"
   dependencies:
     archy "^1.0.0"
     arrify "^1.0.1"
@@ -2916,11 +3101,11 @@ nyc@^11.1.0:
     foreground-child "^1.5.3"
     glob "^7.0.6"
     istanbul-lib-coverage "^1.1.1"
-    istanbul-lib-hook "^1.0.7"
-    istanbul-lib-instrument "^1.7.4"
-    istanbul-lib-report "^1.1.1"
-    istanbul-lib-source-maps "^1.2.1"
-    istanbul-reports "^1.1.1"
+    istanbul-lib-hook "^1.1.0"
+    istanbul-lib-instrument "^1.9.1"
+    istanbul-lib-report "^1.1.2"
+    istanbul-lib-source-maps "^1.2.2"
+    istanbul-reports "^1.1.3"
     md5-hex "^1.2.0"
     merge-source-map "^1.0.2"
     micromatch "^2.3.11"
@@ -2928,10 +3113,10 @@ nyc@^11.1.0:
     resolve-from "^2.0.0"
     rimraf "^2.5.4"
     signal-exit "^3.0.1"
-    spawn-wrap "^1.3.8"
+    spawn-wrap "^1.4.2"
     test-exclude "^4.1.1"
-    yargs "^8.0.1"
-    yargs-parser "^5.0.0"
+    yargs "^10.0.3"
+    yargs-parser "^8.0.0"
 
 oauth-sign@~0.8.1:
   version "0.8.2"
@@ -3115,7 +3300,7 @@ path-exists@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
 
-path-is-absolute@^1.0.0:
+path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
@@ -3123,10 +3308,6 @@ path-is-inside@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
 
-path-key@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/path-key/-/path-key-1.0.0.tgz#5d53d578019646c0d68800db4e146e6bdc2ac7af"
-
 path-key@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
@@ -3210,11 +3391,7 @@ pkg-up@^1.0.0:
   dependencies:
     find-up "^1.0.0"
 
-plur@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/plur/-/plur-1.0.0.tgz#db85c6814f5e5e5a3b49efc28d604fec62975156"
-
-plur@^2.0.0:
+plur@^2.0.0, plur@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/plur/-/plur-2.1.2.tgz#7482452c1a0f508e3e344eaec312c91c29dc655a"
   dependencies:
@@ -3453,18 +3630,21 @@ pretty-ms@^0.2.1:
   dependencies:
     parse-ms "^0.1.0"
 
-pretty-ms@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/pretty-ms/-/pretty-ms-2.1.0.tgz#4257c256df3fb0b451d6affaab021884126981dc"
+pretty-ms@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/pretty-ms/-/pretty-ms-3.1.0.tgz#e9cac9c76bf6ee52fe942dd9c6c4213153b12881"
   dependencies:
-    is-finite "^1.0.1"
     parse-ms "^1.0.0"
-    plur "^1.0.0"
+    plur "^2.1.2"
 
 private@^0.1.6:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.7.tgz#68ce5e8a1ef0a23bb570cc28537b5332aba63ef1"
 
+private@^0.1.7:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
+
 process-nextick-args@~1.0.6:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
@@ -3606,6 +3786,10 @@ regenerator-runtime@^0.10.0:
   version "0.10.3"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.3.tgz#8c4367a904b51ea62a908ac310bf99ff90a82a3e"
 
+regenerator-runtime@^0.11.0:
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
+
 regex-cache@^0.4.2:
   version "0.4.3"
   resolved "https://registry.yarnpkg.com/regex-cache/-/regex-cache-0.4.3.tgz#9b1a6c35d4d0dfcef5711ae651e8e9d3d7114145"
@@ -3728,13 +3912,13 @@ reshape-code-gen@^0.2.1:
     objectfn "^2.0.0"
     with "^5.1.1"
 
-reshape-content@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/reshape-content/-/reshape-content-0.2.0.tgz#66a64384a9caa5f5d6f76d7e6d267ca22a9ec7c3"
+reshape-content@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/reshape-content/-/reshape-content-0.3.0.tgz#4479e486f46e9840b34192e8ca613bda78cc8ff5"
   dependencies:
     reshape-parser "^0.2.1"
     reshape-plugin-util "^0.2.1"
-    when "^3.7.7"
+    when "^3.7.8"
 
 reshape-eval-code@^0.3.4:
   version "0.3.4"
@@ -3867,9 +4051,12 @@ retext@^5.0.0:
     retext-stringify "^2.0.0"
     unified "^6.0.0"
 
-rewire@^2.5.2:
-  version "2.5.2"
-  resolved "https://registry.yarnpkg.com/rewire/-/rewire-2.5.2.tgz#6427de7b7feefa7d36401507eb64a5385bc58dc7"
+rewire@^3.0.0:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/rewire/-/rewire-3.0.2.tgz#25e5413c4f1676eb3247d1884198b3a265408bbd"
+  dependencies:
+    babel-core "^6.26.0"
+    babel-plugin-transform-es2015-block-scoping "^6.26.0"
 
 right-align@^0.1.1:
   version "0.1.3"
@@ -3877,12 +4064,18 @@ right-align@^0.1.1:
   dependencies:
     align-text "^0.1.1"
 
-rimraf@2, rimraf@^2.2.8, rimraf@^2.3.3, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.1:
+rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.1:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.1.tgz#c2338ec643df7a1b7fe5c54fa86f57428a55f33d"
   dependencies:
     glob "^7.0.5"
 
+rimraf@^2.6.2:
+  version "2.6.2"
+  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
+  dependencies:
+    glob "^7.0.5"
+
 run-async@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/run-async/-/run-async-0.1.0.tgz#c8ad4a5e110661e402a7d21b530e009f25f8e389"
@@ -3919,6 +4112,10 @@ semver-diff@^2.0.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
 
+semver@^5.4.1:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
+
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
@@ -3927,6 +4124,16 @@ set-immediate-shim@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
 
+shebang-command@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
+  dependencies:
+    shebang-regex "^1.0.0"
+
+shebang-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
+
 shelljs@^0.7.5:
   version "0.7.7"
   resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.7.tgz#b2f5c77ef97148f4b4f6e22682e10bba8667cff1"
@@ -3974,12 +4181,24 @@ sort-keys@^1.0.0, sort-keys@^1.1.1, sort-keys@^1.1.2:
   dependencies:
     is-plain-obj "^1.0.0"
 
-source-map-support@^0.4.0, source-map-support@^0.4.2:
+source-map-support@^0.4.15:
+  version "0.4.18"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.18.tgz#0286a6de8be42641338594e97ccea75f0a2c585f"
+  dependencies:
+    source-map "^0.5.6"
+
+source-map-support@^0.4.2:
   version "0.4.14"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.14.tgz#9d4463772598b86271b4f523f6c1f4e02a7d6aef"
   dependencies:
     source-map "^0.5.6"
 
+source-map-support@^0.5.0:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.2.tgz#1a6297fd5b2e762b39688c7fc91233b60984f0a5"
+  dependencies:
+    source-map "^0.6.0"
+
 source-map@^0.4.4:
   version "0.4.4"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
@@ -3990,16 +4209,20 @@ source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1:
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
 
-spawn-wrap@^1.3.8:
-  version "1.3.8"
-  resolved "https://registry.yarnpkg.com/spawn-wrap/-/spawn-wrap-1.3.8.tgz#fa2a79b990cbb0bb0018dca6748d88367b19ec31"
+source-map@^0.6.0:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
+
+spawn-wrap@^1.4.2:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/spawn-wrap/-/spawn-wrap-1.4.2.tgz#cff58e73a8224617b6561abdc32586ea0c82248c"
   dependencies:
     foreground-child "^1.5.6"
     mkdirp "^0.5.0"
     os-homedir "^1.0.1"
-    rimraf "^2.3.3"
+    rimraf "^2.6.2"
     signal-exit "^3.0.2"
-    which "^1.2.4"
+    which "^1.3.0"
 
 spdx-correct@~1.0.0:
   version "1.0.2"
@@ -4034,9 +4257,9 @@ sshpk@^1.7.0:
     jsbn "~0.1.0"
     tweetnacl "~0.14.0"
 
-stack-utils@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/stack-utils/-/stack-utils-1.0.0.tgz#2392cd8ddbd222492ed6c047960f7414b46c0f83"
+stack-utils@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/stack-utils/-/stack-utils-1.0.1.tgz#d4f33ab54e8e38778b0ca5cfd3b3afb12db68620"
 
 standard-engine@~7.0.0:
   version "7.0.0"
@@ -4086,6 +4309,13 @@ string-width@^2.0.0:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^3.0.0"
 
+string-width@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
+  dependencies:
+    is-fullwidth-code-point "^2.0.0"
+    strip-ansi "^4.0.0"
+
 string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
@@ -4162,6 +4392,12 @@ supports-color@^4.0.0:
   dependencies:
     has-flag "^2.0.0"
 
+supports-color@^5.0.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.1.0.tgz#058a021d1b619f7ddf3980d712ea3590ce7de3d5"
+  dependencies:
+    has-flag "^2.0.0"
+
 svgo@^0.7.0:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/svgo/-/svgo-0.7.2.tgz#9f5772413952135c6fefbf40afe6a4faa88b4bb5"
@@ -4182,6 +4418,10 @@ symbol-observable@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.4.tgz#29bf615d4aa7121bdd898b22d4b3f9bc4e2aa03d"
 
+symbol-observable@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.1.0.tgz#5c68fd8d54115d9dfb72a84720549222e8db9b32"
+
 table@^3.7.8:
   version "3.8.3"
   resolved "https://registry.yarnpkg.com/table/-/table-3.8.3.tgz#2bbc542f0fda9861a755d3947fefd8b3f513855f"
@@ -4214,11 +4454,11 @@ tar@^2.2.1:
     fstream "^1.0.2"
     inherits "2"
 
-term-size@^0.1.0:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/term-size/-/term-size-0.1.1.tgz#87360b96396cab5760963714cda0d0cbeecad9ca"
+term-size@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/term-size/-/term-size-1.2.0.tgz#458b83887f288fc56d6fffbfad262e26638efa69"
   dependencies:
-    execa "^0.4.0"
+    execa "^0.7.0"
 
 test-exclude@^4.1.1:
   version "4.1.1"
@@ -4266,6 +4506,10 @@ to-fast-properties@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.2.tgz#f3f5c0c3ba7299a7ef99427e44633257ade43320"
 
+to-fast-properties@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
+
 topo@2.x.x:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/topo/-/topo-2.0.2.tgz#cd5615752539057c0dc0491a621c3bc6fbe1d182"
@@ -4419,16 +4663,17 @@ unzip-response@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/unzip-response/-/unzip-response-2.0.1.tgz#d2f0f737d16b0615e72a6935ed04214572d56f97"
 
-update-notifier@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/update-notifier/-/update-notifier-2.1.0.tgz#ec0c1e53536b76647a24b77cb83966d9315123d9"
+update-notifier@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/update-notifier/-/update-notifier-2.3.0.tgz#4e8827a6bb915140ab093559d7014e3ebb837451"
   dependencies:
-    boxen "^1.0.0"
-    chalk "^1.0.0"
+    boxen "^1.2.1"
+    chalk "^2.0.1"
     configstore "^3.0.0"
+    import-lazy "^2.1.0"
+    is-installed-globally "^0.1.0"
     is-npm "^1.0.0"
     latest-version "^3.0.0"
-    lazy-req "^2.0.0"
     semver-diff "^2.0.0"
     xdg-basedir "^3.0.0"
 
@@ -4497,23 +4742,29 @@ which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
 
-which@^1.2.4, which@^1.2.8, which@^1.2.9:
+which@^1.2.9:
   version "1.2.14"
   resolved "https://registry.yarnpkg.com/which/-/which-1.2.14.tgz#9a87c4378f03e827cecaf1acdf56c736c01c14e5"
   dependencies:
     isexe "^2.0.0"
 
+which@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/which/-/which-1.3.0.tgz#ff04bdfc010ee547d780bec38e1ac1c2777d253a"
+  dependencies:
+    isexe "^2.0.0"
+
 wide-align@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.0.tgz#40edde802a71fea1f070da3e62dcda2e7add96ad"
   dependencies:
     string-width "^1.0.1"
 
-widest-line@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/widest-line/-/widest-line-1.0.0.tgz#0c09c85c2a94683d0d7eaf8ee097d564bf0e105c"
+widest-line@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/widest-line/-/widest-line-2.0.0.tgz#0142a4e8a243f8882c0233aa0e0281aa76152273"
   dependencies:
-    string-width "^1.0.1"
+    string-width "^2.1.1"
 
 window-size@0.1.0:
   version "0.1.0"
@@ -4600,35 +4851,28 @@ yallist@^2.0.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
 
-yargs-parser@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-5.0.0.tgz#275ecf0d7ffe05c77e64e7c86e4cd94bf0e1228a"
-  dependencies:
-    camelcase "^3.0.0"
-
-yargs-parser@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
+yargs-parser@^8.0.0, yargs-parser@^8.1.0:
+  version "8.1.0"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-8.1.0.tgz#f1376a33b6629a5d063782944da732631e966950"
   dependencies:
     camelcase "^4.1.0"
 
-yargs@^8.0.1:
-  version "8.0.2"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.2.tgz#6299a9055b1cefc969ff7e79c1d918dceb22c360"
+yargs@^10.0.3:
+  version "10.1.1"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-10.1.1.tgz#5fe1ea306985a099b33492001fa19a1e61efe285"
   dependencies:
-    camelcase "^4.1.0"
-    cliui "^3.2.0"
+    cliui "^4.0.0"
     decamelize "^1.1.1"
+    find-up "^2.1.0"
     get-caller-file "^1.0.1"
     os-locale "^2.0.0"
-    read-pkg-up "^2.0.0"
     require-directory "^2.1.1"
     require-main-filename "^1.0.1"
     set-blocking "^2.0.0"
     string-width "^2.0.0"
     which-module "^2.0.0"
     y18n "^3.2.1"
-    yargs-parser "^7.0.0"
+    yargs-parser "^8.1.0"
 
 yargs@~3.10.0:
   version "3.10.0"