Rename DACircularProgressView.h and .m files to avoid naming conflict. Because EECircularMusicPlayerControl uses a modified version of DACircularProgressView, want to avoid the conflict to the original version.
Rename DACircularProgressLayer and DACircularProgressView classes used and modified in EECircularMusicPlayerControl to avoid naming conflict to the original version of them.
Remove unnecessary #import directive.
Set 5.0 to iOS Deployment Target. (Drop supporting iOS 4.)
Add podspec file.
Merge branch 'cocoapods'