latest README & spec tweaks
fixes #202 move/zoom delegate notifications bug introduced in 1edc4248
fix readme screenshot
fix readme screenshot
refs #203: add docs about default tile source
allow for generic bundle resource retrieval
fixes #203: use local, offline-capable TileJSON by default
bump up bundled TileJSON to new max zoom
fix individual annotation removal clustering glitch
add fill pattern image to RMShape
fix to not override a set fill color
fix projected point equality test

Previously testing y coordinate always returned true because there was point2.y == point2.y
Merge pull request #220 from mgamer/develop

fix projected point equality test
added fillPatternImage to RMCircle
Merge branch 'develop' into release
update podspec to work with CocoaPods 0.17+
update binary downloads link
update podspec for 0.18+
re-added license to spec
Merge remote-tracking branch 'mapbox/release' into release