iOS: Entities with custom class named differently as entity are not synced

[chbeer]

When an entity is implemented by a custom class that's named differently as the entity itself the sync does not work.

Simperium reports: "Simperium managing x object instances" but the data of the x objects is not available in Simperium's Data Browser.

(as reported via Twitter by me (@christian_beer) a day ago. Just to have it tracked here)