Add pre-commit to lint source code before commit

Author: PeachScript

package.json

@@ -60,6 +60,7 @@
     "less-loader": "^2.2.3",
     "mocha": "^3.0.2",
     "phantomjs-prebuilt": "^2.1.7",
+    "pre-commit": "^1.2.2",
     "style-loader": "^0.13.1",
     "url-loader": "^0.5.7",
     "vue": "^2.1.7",
@@ -74,5 +75,8 @@
   "peerDependencies": {
     "vue": "^2.1.7"
   },
-  "license": "MIT"
+  "license": "MIT",
+  "pre-commit": [
+    "lint"
+  ]
 }