NSManagedObject+CoreDataKit.h fixed
CDKObserver Classes added and implemented

Signed-off-by: Felix Gabel <felix.gabel@me.com>
improved reloading mechanism

Signed-off-by: Felix Gabel <felix.gabel@me.com>
small fixes

Signed-off-by: Felix Gabel <felix.gabel@me.com>
NSExpressionDescription Category added

Signed-off-by: Felix Gabel <felix.gabel@me.com>
renaming method names

Signed-off-by: Felix Gabel <felix.gabel@me.com>
Analyzer warnings fixed

Signed-off-by: Felix Gabel <felix.gabel@me.com>