added changelog

+Changelog
+---------
+
+### 1.0.3
+#### June 28, 2013
+
+  - Added support for the new SSL tile API. 
+  - Improved disk caching API. 
+  - Updated some API URLs to the latest preferred versions. 
+  - Made some documentation improvements. 
+  - Fixed a bug with MapBox markers that used custom colors. 
+  - Fixed several small potental crash bugs. 
+
+### 1.0.2
+#### March 29, 2013
+
+  - Added locally-bundled metadata for basic `RMMapBoxSource` use so that apps can better work offline from first launch, including when using XIBs and storyboards. 
+  - Added a `fillPatternImage` property to `RMShape` and `RMCircle`. 
+  - Fixed a bug related to updating annotation clusters after removal of single annotations. 
+  - Fixed a bug related to comparisons of projected points on the map. 
+
+### 1.0.1
+#### March 5, 2013
+
+  - Fixed a bug with `RMMapViewDelegate` callbacks for post-move and zoom events. 
+
+### 1.0.0
+#### March 4, 2013
+
+  - Support for Automatic Reference Counting (ARC) for easier memory management. 
+  - Added delegate callbacks for annotation selection & deselection notification. 
+  - Improved documentation, especially for offline tile caching. 
+  - Added a new [code examples gallery](../examples). 
+  - Added a long press gesture recognizer for annotation layers. 
+  - Added an API for setting an SDK-wide custom user-agent string for network requests. 
+  - Added a convenience method for MBTiles tile sources to more easily find them in your app's bundle. 
+  - Allow selection of a `nil` annotation in order to deselect the current annotation. 
+  - Added an API for clearing MapBox marker local caching. 
+  - Map views now default to a watermarked MapBox Streets map instead of OpenStreetMap. 
+  - User location accuracy circle now bounces when first homing in on coordinate. 
+  - Compass heading path now adjusts width based on heading accuracy reading. 
+  - Annotation clustering API is now much simpler and easier to use. 
+  - Privatized some header files to reduce clutter during Xcode autocompletion. 
+  - Latest upstream improvements, including constraints, annotation z-ordering, and bounding box fixes. 
+  - Code cleanups, consistency tweaks, and bug fixes. 
+
+### 0.5.2
+#### January 3, 2013
+
+  - Added support for programmatic selection of annotations and display of callouts. 
+  - Added support for annotation `calloutOffset` like MapKit. 
+  - Fixed some bugs with callouts on circles and other shapes. 
+  - Better shape hit detection based on current `fillRule`. 
+  - Fixed a bug with shape clipping when map views were inset from the top of their superview. 
+  - Fixed a few memory reuse problems. 
+  - Allow silent re-add of already-added annotations. 
+
+### 0.5.1
+#### December 12, 2012
+
+  - Added support for annotation callout subtitles. 
+  - Fixed a bug related to touch events in `UIControl` objects on the map view. 
+  - Fixed a bug with Bézier shape drawing on iOS 5. 
+  - Fixed a crash when passing a `nil` static map completion handler. 
+  - Added a CocoaPods `Podspec` directly to the repository for development use. 
+  - Corrected annotation layer delegate request behavior when using simplestyle. 
+
+###  0.5.0
+#### November 29, 2012
+
+  - Added a background tile downloader for pre-caching maps. 
+  - Added some annotation convenience classes for simple use cases. 
+  - Added annotation callouts that behave like MapKit. 
+  - Support for MapBox map ID alongside TileJSON for easier map tile source use.
+  - Support for the MapBox image quality API to save bandwidth.
+  - Improved Interface Builder support for `RMMapView` and `RMUserTrackingBarButtonItem`.
+  - New `RMStaticMapView` class for creating `UIImageView`-like one-shot map images.
+  - New `RMTileMillSource` tile source for developing directly off of a TileMill instance.
+  - Methods for animated map zooming without changing map center as well as zoom/center changes in one step.
+  - Support for individual annotation touch enabling/disabling with the enabled property.
+  - Support for Bézier curves in shape layers.
+  - Improved tile cache API to allow greater flexibility with selective cache clearing.
+  - Easier attribution of map tile source data in the map view.
+  - MapKit-like support for a custom user location annotation layer.
+  - New `RMCompositeSource` tile source to enabling caching of client-side composited map tile end products.
+  - Unified `MapBox.h` header with commonly-used classes for all install methods.
+  - Updated GRMustache library for more up-to-date Mustache template functionality in UTFGrid interactivity.
+  - SDK resources such as images now install in a single `MapBox.bundle` file instead of individually.
+  - Removed the dependent build of the Proj4 projection library to greatly speed up compilation time.
+  - Improvements to asynchronous map tile render speed and reliability.
+  - Improved z-index sorting of cluster, point, and shape annotation layers.
+  - Cleaned and reorganized Xcode project groups for simplicity.
+
+### 0.4.3
+#### September 17, 2012
+
+  - Fixed a bug related to hiding & showing of the user location halo. 
+
+### 0.4.2
+#### September 5, 2012
+
+  - Fixed a bug related to over-aggressive tile rendering for local tile sources. 
+
+### 0.4.1
+#### August 27, 2012
+
+  - Fixed a bug related to app location services permission changes. 
+
+### 0.4.0
+#### August 23, 2012
+
+  - First release in CocoaPods. 
+  - First release of Xcode documentation. 
+  - Improved the performance of network tile fetching and drawing.
+  - Added retina support for MapBox markers.
+  - Added the ability to reload individual composited tile sources.
+  - The map view background now behaves more like MapKit when loading tiles.
+  - Added a single, unified header file for easier project inclusion.
+  - The map view is no longer recreated on tile source reordering or hiding.
+  - Improvements to map rotation when tracking user compass heading and when rotating the application orientation.
+  - Annotations are now ordered in the third dimension according to relative screen position, including during map rotation.
+  - Improved the map view delegate protocol to indicate direct user actions that change the map.
+  - Reduced the amount of code necessary at map view initialization in order to behave more like MapKit.
+  - Added an option to disable compass heading calibration display.
+  - Map view delegate can now be set graphically in a XIB.
+  - Added the ability to interact with the user location annotation.
+  - Stability improvements when applications lose and regain location services permissions.
+  - Improved ability to debug UTFGrid interactivity in Xcode.
+
+### 0.3.0
+#### July 5, 2012
+
+  - First release of the prepackaged binary. 
+  - Added support for MapBox markers. 
+  - Improved the performance of vector paths and shapes when panning and zooming. 
+  - Enhanced the performance and redrawing of multiple stacked tile layers. 
+  - Other refactorings and improvements. 
+
+### 0.2.0
+#### June 8, 2012
+
+  - Added user location services. 
+  - Added configurable cache expiration handling. 
+  - Enhancements for interactivity & composite sources. 
+  - Xcode 4.3 compatibility. 
+  - Minor bug fixes. 
+  - Various upstream enhancements. 
+
+### 0.1.0
+#### April 16, 2012
+
+  - Initial public release.