replace phantomjs with phantomjs-prebuilt

package.json

@@ -5,7 +5,8 @@
   "author": "Declan de Wet <declandewet@me.com>",
   "bugs": "https://github.com/declandewet/vue-meta/issues",
   "dependencies": {
-    "deepmerge": "^1.2.0"
+    "deepmerge": "^1.2.0",
+    "phantomjs-prebuilt": "^2.1.13"
   },
   "devDependencies": {
     "babel-cli": "^6.18.0",
@@ -29,7 +30,6 @@
     "karma-phantomjs-launcher": "^1.0.2",
     "karma-webpack": "^1.8.0",
     "mocha": "^3.1.2",
-    "phantomjs": "^2.1.7+deprecated",
     "rimraf": "^2.5.4",
     "rollup": "^0.36.3",
     "rollup-plugin-buble": "^0.14.0",