grab latest bug fix in SMCalloutView
Merge branch 'develop' of github.com:mapbox/mapbox-ios-sdk into develop
allow selection of nil annotation to deselect
updated project for Xcode 4.6
Merge branch 'develop' of github.com:mapbox/mapbox-ios-sdk into develop
clarified some defaults
added marker image cache clear method
added support for TileJSON string and URL retrieval
remove old deprecated plist handling
cut overhead by handling JSON firsthand instead of JSONP
improve offline tile cache use documentation
fixes #161: cross-link existing file cache info
fixes #178: fail map view init on invalid tile source
rename long-press gesture for consistency with Apple
refs #181: added long-press annotation gesture
added bit about sample app screenshots
also sort circles with shapes in z-ordering
fixes #182: allow special annotation classes to remove their layer
Merge branch 'develop' of github.com:mapbox/mapbox-ios-sdk into develop
fixes #186: don't "change" center if not different