Update dependency and test command for PhantomJS

Author: jeff-clegg

package.json

@@ -45,13 +45,13 @@
     "karma-junit-reporter": "^0.3.8",
     "karma-mocha": "^0.2.1",
     "karma-mocha-reporter": "^1.1.5",
-    "karma-phantomjs-launcher": "^0.2.3",
+    "karma-phantomjs-launcher": "^1.0.1",
     "karma-requirejs": "^0.2.1",
     "loopback": "^2.0",
     "loopback-datasource-juggler": "^2.0",
     "mocha": "~1.18.0",
     "morgan": "^1.2",
-    "phantomjs": "^1.9.19",
+    "phantomjs-prebuilt": "^2.1.7",
     "requirejs": "^2.1.9"
   }
 }