chore(package): update url-loader to version 0.6.2

Closes #65

Author: greenkeeper[bot]

package.json

@@ -45,7 +45,7 @@
     "leaflet-draw": "^0.4.9",
     "mocha": "^3.2.0",
     "style-loader": "^0.18.0",
-    "url-loader": "^0.5.7",
+    "url-loader": "^0.6.2",
     "webpack": "^3.1.0",
     "webpack-dev-server": "^2.3.0"
   },