Xcode, stop bugging my test target!!11111
refactor EKMapper, add EKManagedObjectMapper. Add unavailable compiler warnings for some EKManagedObjectMapping methods, that should not be used.
add EKCoreDataImporter class, collect entity names from mapping
introspect representation, collect all primary key values
add null edge cases and handle them properly
wrap oneMapping case into nsnull check
switch to using CoreData importer class
optimize imports
code formatting
reduce update times in CoreData by checking value before replacing it
remove obsolete comments
Merge pull request #49 from DenHeadless/CoreDataImportOptimization

Core data import optimization