Merge pull request #5 from gbenvenuti/master

Readme update, added note on iOS6 raised in Issue #1
Merge pull request #6 from gbenvenuti/master

Version bump
New screenOrientation api, working minus checks and event firing
Updated to attach functions directly to screen object and constant cleanup
Readme and plugin.xml update
Merge pull request #7 from gbenvenuti/screenOrientationApi

Screen orientation api
Added missing orientation types to README
Merge pull request #8 from gbenvenuti/screenOrientationApi

Added missing orientation types to README