basic iOS 7/Xcode 5 fixes & settings
first cut of tracking button iOS 7 fixes
first cut of iOS 7 heading compass
minor spacing fixes
basic iOS 7 tint response for user location tracking (dot/halo/accuracy)
use gray indicator on iOS 7
better iOS 7 determination
Merge branch 'develop' into ios7
updated README for dev todos
todo list adds
user location updates for latest iOS 7 beta look
fixes #270: correct XIB setup with autolayout
Merge branch '270-autolayout-storyboards' into ios7
only attempt tint refresh when on map
fix autolayout for compass view
update compass constraints in the right place
todo updates
formatting
added tile source alpha methods
enhanced customizability for point, polyline, and polygon annotations