Merge pull request #18 from cekoski/master

Added flipped tree graph orientations. Thanks cekoski!
Merge pull request #20 from cekoski/master

Fixed keyboard navigation in flipped orientations. Thanks @cekoski
Upgrade to Xcode 4.5, iOS 6.0

Simple changes to project settings.
Updated unit test template project settings.

Standard build arch with 6.0 deployment target.
Added contribute section to README

Added contribute section.
Updated project example project files to Xcode 5.
Fixed device rotation issue because the root view controller property was not set on the Window in the mainWindow.xib.  Updated source to set the root view controller on the window should it ever get removed again.  Added type cast to silence warning about conversations when adding a objc “Class” to a mutable dictionary because the mutable dictionaries expect an id<NSCopying>.
Updated test case project (the template part that gets published.)
Ran refactor tool for modern objective C syntax.  Very minor changes.
Converted test cases to XCTest.
Changes required to allow ARC conversion.
Merge branch 'ARC'
Conversion to ARC.
Removed orphaned comments after ARC conversion.
Updated README concerning move to ARC.
Line wrap mode when viewing readme.
Merge branch 'ARC'
First steps into CI with Travis

See travis-ci.org for further details.
Updated to display CI status in readme.

CI status will now be displayed on the readme.
Updated travis build file

The build file will now ask Travis to update sub modules (if they are
ever used) and only build from master.  Build commands should change
the current directory to the project location.
Updated project to not require a code signing identity.

If you are using this outside the simulator, select a code signing
identity.