Bumped version and added pre-commit hook

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-google-charts",
-  "version": "1.4.2",
+  "version": "1.5.2",
   "type": "react-component",
   "description": "react-google-charts React component",
   "main": "lib/index.js",
@@ -45,6 +45,7 @@
     "jsdom": "^9.5.0",
     "nwb": "^0.15.6",
     "object-assign": "^4.1.0",
+    "pre-commit": "^1.2.2",
     "react-router": "^2.4.1",
     "react-test-renderer": "^15.3.2",
     "yargs": "^5.0.0"

yarn.lock

@@ -2182,7 +2182,7 @@ [email protected]:
     readable-stream "~2.0.0"
     typedarray "~0.0.5"
 
-concat-stream@^1.4.6:
+concat-stream@^1.4.6, concat-stream@^1.4.7:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.5.2.tgz#708978624d856af41a5a741defdd261da752c266"
   dependencies:
@@ -2322,7 +2322,7 @@ create-hmac@^1.1.0, create-hmac@^1.1.2:
     create-hash "^1.1.0"
     inherits "^2.0.1"
 
-[email protected]:
+[email protected], cross-spawn@^5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.0.1.tgz#a3bbb302db2297cbea3c04edf36941f4613aa399"
   dependencies:
@@ -5722,6 +5722,10 @@ os-locale@^1.4.0:
   dependencies:
     lcid "^1.0.0"
 
+os-shim@^0.1.2:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/os-shim/-/os-shim-0.1.3.tgz#6b62c3791cf7909ea35ed46e17658bb417cb3917"
+
 os-tmpdir@^1.0.1, os-tmpdir@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
@@ -6170,6 +6174,14 @@ postcss@^5.0.10, postcss@^5.0.11, postcss@^5.0.12, postcss@^5.0.13, postcss@^5.0
     source-map "^0.5.6"
     supports-color "^3.2.3"
 
+pre-commit@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/pre-commit/-/pre-commit-1.2.2.tgz#dbcee0ee9de7235e57f79c56d7ce94641a69eec6"
+  dependencies:
+    cross-spawn "^5.0.1"
+    spawn-sync "^1.0.15"
+    which "1.2.x"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -6993,6 +7005,13 @@ sparkles@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/sparkles/-/sparkles-1.0.0.tgz#1acbbfb592436d10bbe8f785b7cc6f82815012c3"
 
+spawn-sync@^1.0.15:
+  version "1.0.15"
+  resolved "https://registry.yarnpkg.com/spawn-sync/-/spawn-sync-1.0.15.tgz#b00799557eb7fb0c8376c29d44e8a1ea67e57476"
+  dependencies:
+    concat-stream "^1.4.7"
+    os-shim "^0.1.2"
+
 spdx-correct@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-1.0.2.tgz#4b3073d933ff51f3912f03ac5519498a4150db40"
@@ -7672,7 +7691,7 @@ which-module@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-1.0.0.tgz#bba63ca861948994ff307736089e3b96026c2a4f"
 
-which@^1.1.1, which@^1.2.1, which@^1.2.12, which@^1.2.9, which@~1.2.10:
+which@1.2.x, which@^1.1.1, which@^1.2.1, which@^1.2.12, which@^1.2.9, which@~1.2.10:
   version "1.2.12"
   resolved "https://registry.yarnpkg.com/which/-/which-1.2.12.tgz#de67b5e450269f194909ef23ece4ebe416fa1192"
   dependencies: