Dont link ReactiveCocoa
Update README.md to reflect that it is now necessary to link both ReactiveCocoa and ReactiveCocoaLayout to an iOS target.
Simplify readme changes
Link ReactiveCocoa in unit tests
Add ReactiveCocoa as a target dependency to DeviceRotation
Reword iOS ReactiveCocoa linking instructions
Merge pull request #48 from github/dont-link-rac

Don't link RAC in ReactiveCocoaLayout