updated proj4

Author: DanielJDufour

package.json

@@ -36,7 +36,7 @@
   },
   "homepage": "https://github.com/DanielJDufour/proj4-fully-loaded#readme",
   "dependencies": {
-    "proj4": "^2.7.2",
+    "proj4": "^2.8.0",
     "proj4js-definitions": "^0.1.0"
   },
   "devDependencies": {