Merge pull request #20 from MattFoley/master

iCarousel Datasource implementation.
removed a space. whitespace
whitespace
Added newInstance and newIsntaceWithContext for object creation.
dlog to CDLog
added description method to mappers and maps
reorganized file structure
caught a bug with default mapper numberFormatter, but have not fixed
renamed "objectForClass" to "managedObjectOfClass"
Merge pull request #21 from seanwolter/master

changed file structure, documented bug, added description method to map and mapper objects
Allow for In-Memory store types and use within logic Unit Tests.
Merge remote-tracking branch 'upstream/master'
objectForClass -> managedObjectOfClass
added safe context to managedObjectOfClass:inContext:
Merge pull request #22 from chillpop/master

Convenience factory methods for managed objects and ability to use an in-memory store
Merge branch 'master' of github.com:vokalinteractive/CoreDataManager-iOS
made sure safeContext: is applied to new entity methods
Merge pull request #23 from seanwolter/master

added safeContext: check to inert new entities methods and updates Carl's convenience methods to use contextOrNil