Merge pull request #4751 from openlayers/greenkeeper-phantomjs-2.1.3

Update phantomjs to version 2.1.3 🚀

package.json

@@ -63,7 +63,7 @@
     "mocha": "2.3.4",
     "mocha-phantomjs-core": "^1.3.0",
     "mustache": "2.2.1",
-    "phantomjs": "2.1.2",
+    "phantomjs-prebuilt": "2.1.3",
     "proj4": "2.3.12",
     "resemblejs": "2.1.0",
     "sinon": "1.17.3",

tasks/test.js

@@ -6,7 +6,7 @@
 var path = require('path');
 var spawn = require('child_process').spawn;
 
-var phantomjs = require('phantomjs');
+var phantomjs = require('phantomjs-prebuilt');
 
 var serve = require('./serve');