Fixes to make the tests more deterministic.
Allow optional width / height properties for CDAPersistedAssets.
Handle unmapped relationships in `CoreDataManager`.

Fixes #8.
Added test case for CoreData issues.
Removed some unnecessary newlines.
Do not show links in -description of entries to avoid infinite loops.
Implemented support for to-many relationships in CoreDataManager.
Bump version number.
Updated static framework build.
Updated development Pods.
Expose map view to clients.

Needed for setting the delegate, for example.
Actually implement -items.
Add identifier to map annotations to make interaction easier to implement.
Guard against crash for processing Entry with relationship.
- Added Core Data model light weight migration.
- Added auto-replacing the persistent store on DEBUG builds if schema doesn't match.
Merge branch 'master' of https://github.com/sundeepgupta/contentful.objc

Conflicts:
	Code/CoreData/CoreDataManager.m