fixed multiple recognizers being added to view
Merge pull request #43 from Ahti/master

Fix multiple recognizers being added to view
Make DAKeyboardControl build with -Wunused-parameter
Add documentation to the headers
Merge pull request #44 from kylef/unused

Make DAKeyboardControl build with -Wunused-parameter
Merge pull request #45 from kylef/docs

Add documentation to the headers
Update to recommended example project settings
Remove UserInterfaceState