#156 Fixing MapboxTileLayer name
#76 - Cleaning up GeoJSON class
#76 - Created NetworkUtils.isNetworkAvailable() utility method to check for current network connection status.  Making use of it in MapView.loadFromGeoJSONURL and displaying short Toast error message if not connected.
Merge pull request #172 from bleege/geojson

Adding NetworkCheck Util For GeoJSON Loading Error