Merge pull request #31 from DenHeadless/master

Adding NSOrderedSet support for ordered relationships in CoreData
#30 fixing crash when mapping null properties of an external represantation  to native fields
removing line
preparing for the next version
Add BOOL, bool to primitive values array
Merge pull request #33 from XBeg9/fix-crash-primitive-values

Add BOOL, bool to primitive values array
preparing for the next version
Update README.md
Convenience method for mapping an array of fields where the only difference between the field and the key is that the key is in pascal case.
Method to add mapping fields based on another mapping object.
updating projects to xcode 5.1
fixed EKPropertyHelper (getting of BOOL) on arm64
fixed crash with null value for hasMany mapping and wrong result for null value for oneMapping
Merge pull request #37 from K-Be/master

Fixed crash with null with hasManyMapping
preparing for the next version
Added spec.
Added check for bool type (without it bool properties aren’t serailized.
#39 converting bool types to NSNumber
#38 checking if object is NSNull instead of nil
solving conflicts