Fix a potential ARC issue regarding synced space delegate methods.
Fix a potential ARC issue regarding synced space delegate methods.

contentful/contentful.objc,davidmdavis/contentful.objc,danieleggert/contentful.objc,contentful/contentful.objc,davidmdavis/contentful.objc,danieleggert/contentful.objc,davidmdavis/contentful.objc,danieleggert/contentful.objc,akfreas/contentful.objc,contentful/contentful.objc,akfreas/contentful.objc,akfreas/contentful.objc