Adding linting and fixing linter warnings. Reducing timeouts to 7 seconds.

package.json

@@ -18,6 +18,11 @@
       "browser"
     ]
   },
+  "scripts": {
+    "test": "npm run lint && npm run style",
+    "style": "node_modules/.bin/jscs tests/tests.js",
+    "lint": "node_modules/.bin/jshint tests/tests.js"
+  },
   "repository": {
     "type": "git",
     "url": "https://github.com/apache/cordova-plugin-file-transfer"
@@ -43,5 +48,9 @@
     "cordova-plugin-file": "^3.0.0"
   },
   "author": "Apache Software Foundation",
-  "license": "Apache 2.0"
+  "license": "Apache 2.0",
+  "devDependencies": {
+    "jscs": "^2.6.0",
+    "jshint": "^2.8.0"
+  }
 }