Update browserify.

package.json

@@ -25,8 +25,8 @@
   "devDependencies": {
     "angular": "^1.5.9",
     "angular-cookies": "^1.5.9",
-    "query-string": "^1.0.0",
     "angular-mocks": "1.5.9",
+    "browserify": "^14.5.0",
     "github-changes": "^1.0.0",
     "gulp": "^3.8.10",
     "gulp-babel": "^5.3.0",
@@ -38,7 +38,7 @@
     "gulp-wrap-umd": "^0.2.1",
     "jshint-stylish": "^1.0.0",
     "karma": "^0.13.0",
-    "karma-browserify": "^2.0.0",
+    "karma-browserify": "^5.1.2",
     "karma-chrome-launcher": "^0.1.7",
     "karma-firefox-launcher": "^0.1.4",
     "karma-mocha": "^0.1.10",
@@ -47,8 +47,10 @@
     "karma-sinon": "^1.0.4",
     "lodash": "^4.0.0",
     "mocha": "^2.4.5",
+    "query-string": "^1.0.0",
     "should": "^4.6.0",
     "sinon": "^1.17.3",
+    "watchify": "^3.9.0",
     "yargs": "^3.6.0"
   },
   "scripts": {