[UPDATED] Moved shared MPAppDelegate code into separate files
depending on the code's responsibility.
[UPDATED] iCloud implementation removed in favor of
iCloudStoreManager's managed implementation.
[FIXED] iCloud configuration made AppStore friendly.
[REMOVED] OS X: Disabled ability to add new sites from OS X until I
have time to implement it properly without causing
duplicates etc.
[MOVED] iCloud and Core Data support was centralised to iOS and OS X
to make sure both platforms always use the same container
configuration.
[FIXED] iCloud sync problems.
[REMOVED] iCloud KV is not used/needed.
