Update project settings to enable easier symbolication. closes #1277
Add workaround to avoid potential crash during execution of deletion operations on iOS 5. closes #1266
Bump CocoaPods to 0.16.4
Bump Gem dependencies
Add assertions to `RKMIMETypeSerialization` and `RKTestFixture`
Rework deletion operations to avoid deleting objects that would be valid if mapping we allowed to assign them to the desintation relationship. refs #1225