some of the hacks to do snap-to on points have been removed, at least for now - they needed major rework to fit in
additionally other customisations added are also removed - this is basically now stock leaflet.draw with edit-mode enabled
should fix issues with layer control on mobile, and other improvements
also - the convention for marker filenames has changed from ...@2x.png to ...-2x.png for the double sized ones - so changed our files to match (we had a mix of ...@2x.png and ..._2x.png)