diff --git a/package-lock.json b/package-lock.json
index deeaa86..f83fdd2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -153,6 +153,11 @@
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+    "bagpipe": {
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+      "resolved": "https://registry.npmjs.org/bagpipe/-/bagpipe-0.3.5.tgz",
+      "integrity": "sha1-40HRZPyyTN8E6n4Ft2XsEMiupqE="
+    },
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       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
@@ -693,6 +698,16 @@
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+    "fs-extra": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-8.1.0.tgz",
+      "integrity": "sha512-yhlQgA6mnOJUKOsRUFsgJdQCvkKhcz8tlZG5HBQfReYZy46OwLcY+Zia0mtdHsOo9y/hP+CxMN0TU9QxoOtG4g==",
+      "requires": {
+        "graceful-fs": "^4.2.0",
+        "jsonfile": "^4.0.0",
+        "universalify": "^0.1.0"
+      }
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       "resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-1.2.7.tgz",
@@ -842,6 +857,11 @@
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+    "imurmurhash": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/imurmurhash/-/imurmurhash-0.1.4.tgz",
+      "integrity": "sha1-khi5srkoojixPcT7a21XbyMUU+o="
+    },
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@@ -936,6 +956,14 @@
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       "integrity": "sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus="
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+    "jsonfile": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-4.0.0.tgz",
+      "integrity": "sha1-h3Gq4HmbZAdrdmQPygWPnBDjPss=",
+      "requires": {
+        "graceful-fs": "^4.1.6"
+      }
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       "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
@@ -964,15 +992,20 @@
         "is-buffer": "^1.1.5"
       }
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+    "kruptein": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/kruptein/-/kruptein-2.1.0.tgz",
+      "integrity": "sha512-E9p95WwDl5usm3mNelJ4zekLT1+IcxrzR5dquP/QXUppKeNgNRgtjUYMts8HKyqG2O6inaRCQBxmu4Adqd1jXw=="
+    },
     "lazy-cache": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/lazy-cache/-/lazy-cache-1.0.4.tgz",
       "integrity": "sha1-odePw6UEdMuAhF07O24dpJpEbo4="
     },
     "lodash": {
-      "version": "4.17.15",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
-      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+      "version": "4.17.19",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
+      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ=="
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       "version": "1.0.1",
@@ -1477,6 +1510,11 @@
         "tough-cookie": "^2.3.3"
       }
     },
+    "retry": {
+      "version": "0.12.0",
+      "resolved": "https://registry.npmjs.org/retry/-/retry-0.12.0.tgz",
+      "integrity": "sha1-G0KmJmoh8HQh0bC1S33BZ7AcATs="
+    },
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       "resolved": "https://registry.npmjs.org/right-align/-/right-align-0.1.3.tgz",
@@ -1553,6 +1591,19 @@
         "send": "0.16.2"
       }
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+    "session-file-store": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/session-file-store/-/session-file-store-1.4.0.tgz",
+      "integrity": "sha512-jBeQwoHoHMOBoELxf+f/IDtMI94PqkFrwCP6O3DlvJlsCU6gY6pgWJGxUOtLWxauIdvAqmgoAbpJi7vJih9bvA==",
+      "requires": {
+        "bagpipe": "^0.3.5",
+        "fs-extra": "^8.0.1",
+        "kruptein": "^2.0.4",
+        "object-assign": "^4.1.1",
+        "retry": "^0.12.0",
+        "write-file-atomic": "1.3.1"
+      }
+    },
     "set-blocking": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
@@ -1597,6 +1648,11 @@
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       "integrity": "sha1-db1Pvwba/9EVC3x7KhRULXSUQDw="
     },
+    "slide": {
+      "version": "1.1.6",
+      "resolved": "https://registry.npmjs.org/slide/-/slide-1.1.6.tgz",
+      "integrity": "sha1-VusCfWW00tzmyy4tMsTUr8nh1wc="
+    },
     "source-map": {
       "version": "0.4.4",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
@@ -1815,6 +1871,11 @@
         "random-bytes": "~1.0.0"
       }
     },
+    "universalify": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
+      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg=="
+    },
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
@@ -1902,6 +1963,16 @@
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
+    "write-file-atomic": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-1.3.1.tgz",
+      "integrity": "sha1-fUW6MjFjKN0ex9kPYOvA2EW7dZo=",
+      "requires": {
+        "graceful-fs": "^4.1.11",
+        "imurmurhash": "^0.1.4",
+        "slide": "^1.1.5"
+      }
+    },
     "yallist": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",