WIP - SLSwitch
Adds ON/OFF defines
Adds on property to SLSwitch
Adds tests for SLSwitch
Adds SLSwitch
Adds SLSwitch documentation
Changes SLSwitch to match UISwitch methods
Updates SLSwitch tests
Revert SLSwitchTest xib to Xcode 4.6 format
Updates SLSwitch documentation
Merge pull request #3 from j-mutter/feature/slswitch

Feature/slswitch