Removed multiple declarations of method

method had two identical declarations: 'mappableObjectForData:'
Removed multiple declarations of method

Method 'requestAllSortedBy:ascending:withPredicate:inContext' was declared identically twice!
Removed multiple declarations of method

Method 'objectLoaderForObject:method:delegate:' was declared identically three times!
Merge pull request #889 from jakemaskiewicz/patch-1

Multiple Declarations Removed
Updates for RestKit master for iOS 6 arm7s build error and Xcode 4.5 build warnings. refs #930
Fix bug in route retrieval