Merge branch 'feature/arc' into develop

Conflicts:
	Classes/SPMember.h
	Classes/SPMember.m
	Classes/SPWebSocketChannel.m
	Classes/Simperium.m
	Project/Simperium.xcodeproj/project.pbxproj
	Simperium-OSX/Simperium-OSX.xcodeproj/project.pbxproj
	Simperium/SPS3Manager.h
	Simperium/SPS3Manager.m