Suppress synthesize warnings in Xcode 5
Fixed precision loss on model encoding of integers
Fixed string formatting of unsigned integer
Use parent context and shared dispatch queue for object mapping
Added some error helper methods
Remove parent background context causing conflict issues
Ignore changes from other main contexts in mapping coordinator
Added reference type for item_participation
Added missing data object for item_participation reference type
Add participation stream activity type
Adds participation notification type
Minor change to the value order of PKSpaceType enum
Add additional display type
Merge branch 'master' into 2.0-develop

Conflicts:
	PodioKit.xcodeproj/project.pbxproj
	PodioKit/API/PKPromotionAPI.m
	PodioKit/Core/PKAPIClient.m
	PodioKit/Core/PKCoreDataMappingCoordinator.h
	PodioKit/Core/PKCoreDataMappingCoordinator.m
	PodioKit/Core/PKCoreDataRepository.h
	PodioKit/Core/PKCoreDataRepository.m
	PodioKit/Core/PKHTTPRequestOperation.m
	PodioKit/Model/PKByLineData.m
	PodioKit/Model/PKExternalMeetingData.m
	PodioKit/Model/PKReferenceDataFactory.m
	PodioKit/Model/PKReferenceRatingData.m
	PodioKit/Model/PKReferenceTaskActionData.m
	PodioKit/Model/PKReferenceTaskData.m
	PodioKit/Model/PKSearchResultData.m
	PodioKit/Model/PKSpaceCreateData.m
	PodioKit/Model/PKSpaceMemberRequestData.m
	PodioKit/Model/PKStreamActionData.m
	PodioKit/Model/PKStreamTaskData.m
	PodioKit/PodioKit.h
	PodioKit/Support/NSError+PKErrors.h
	PodioKit/Support/NSError+PKErrors.m
	PodioKit/Support/PKConstants.h
	PodioKit/Support/PKConstants.m