test(karma.conf.js): add karma and dependencies to allow testing

karma.conf.js

@@ -0,0 +1,19 @@
+module.exports = function(config) {
+  config.set({
+    frameworks: ['browserify', 'jasmine'],
+    files: [
+      'bower_components/angular/angular.js',
+      'bower_components/angular-mocks/angular-mocks.js',
+      'hint.js',
+      'hintApp.js',
+      'hintCtrl.js',
+      'hintService.js',
+      '*_test.js'
+    ],
+    exclude: [],
+    preprocessors: {
+      'hint.js': [ 'browserify' ]
+    },
+    browsers: ['Chrome'],
+  });
+};

package.json

@@ -3,6 +3,11 @@
   "version": "0.5.0",
   "description": "chrome extension for inspecting angular apps",
   "main": "hint.js",
+  "devDependencies": {
+    "karma": "0.12.16",
+    "karma-bro": "^0.6.0",
+    "karma-jasmine": "0.1.5"
+  },
   "dependencies": {
     "browserify": "^5.9.1",
     "gulp": "^3.8.7",