chore(package.json): update karma, add karma plugins dep

Author: pedrosanta

package.json

@@ -6,12 +6,16 @@
   "repository": "https://github.com/angular/angular-seed",
   "license": "MIT",
   "devDependencies": {
-    "karma": "~0.10",
-    "protractor": "^1.1.1",
-    "http-server": "^0.6.1",
     "bower": "^1.3.1",
-    "shelljs": "^0.2.6",
-    "karma-junit-reporter": "^0.2.2"
+    "http-server": "^0.6.1",
+    "jasmine-core": "^2.3.4",
+    "karma": "~0.12",
+    "karma-chrome-launcher": "^0.1.12",
+    "karma-firefox-launcher": "^0.1.6",
+    "karma-jasmine": "^0.3.5",
+    "karma-junit-reporter": "^0.2.2",
+    "protractor": "^1.1.1",
+    "shelljs": "^0.2.6"
   },
   "scripts": {
     "postinstall": "bower install",