Fixed and simplified rounded arror code. Changed 'usesRoundedArrow' and 'dimBackgroundViewsTintColor' (adjustsTintColor) from NSNumber to BOOL
Renamed 'dimBackgroundViewsTintColor' to 'dimsBackgroundViewsTintColor'
Updated readme with usesRoundedArrow and dimsBackgroundViewsTintColor
README: Added informative note with the actively maintained fork URL
Fixed crash related to UI_APPEARANCE_SELECTOR not supporting BOOL properties on iOS 7
Merge pull request #30 from obviousengineering/oe-roundedarrow-fix

Fixed and simplified rounded arrow code.