makes -[NSObject af_resourceIdentifier] return the identifier with better searching effort
fixes # 59 object ID cache overwrites identifiers of objects of different entities
fixes relationship importing failing on optional representations for any relationship key
changed the podspec to include the dependency of ISO8601DateFormatter
Notify the observer for the fetched objects
Notifying with calling context objects, not child context object.
Sort the fetched objects with the fetch request's sort descriptors
Fixing change in App.net API response format
Bumping version to 0.2.0
Merge branch 'feature/fixing-count' of https://github.com/evadne/AFIncrementalStore into evadne-feature/fixing-count
Minor reformatting
Reformatting and reverting use of object literals
Refactoring registered objects container, renaming to _registeredObjectIDsByEntityNameAndNestedResourceIdentifier and reverting use of object literals
Removing unused AFIncrementalStoreRelationshipCardinalityException
fixes a superfluous save notification handler invocation bug in relationship fetch completion where it will merge frequently and accidentally once it is hit once
initial @throw on save error: do not silently fail
Reformatting @throw, reverting use of object literal
Adding @throws for errors that would otherwise just be logged for failed saves to managed object contexts
skips importing empty relationship array instead of running through it
Reformatting to more semantic check and early return for empty array