Adds precommit-hook as an npm dependency. Automatically runs jshint before a commit.

package.json

@@ -25,9 +25,14 @@
       "async": "0.9.0",
       "retry": "0.6.1",
       "jssha": "1.5.0",
-      "socket.io-client": "1.3.6"
+      "socket.io-client": "1.3.6",
+      "jshint": "2.8.0",
+      "precommit-hook": "3.0.0"
   },
-  "devDependencies": {
+  "devDependencies": {},
+  "license": "Apache",
+  "scripts": {
+    "lint": "jshint ."
   },
-  "license": "Apache"
+  "pre-commit": ["lint"]
 }