RMTileCache improvements. Allows RMMapView to be initialised with a custom RMTileCache. Also allows RMTileCache to be configured with custom tileCaches array.
The main purpose of this patch is to allow a developer to configure an RMMapView with several offline database caches.
project changes, don’t pull to upstream
Bugfix: fixes muti-layered tile sources (such as OpenSeaMap): call URLsForTile instead of URLForTile
Merge upstream/develop