Move `parentObject` into the 'mapping' namespace within the metadata. refs #1327
Eliminate unnecessary use of `targetObject` within `RKMapperOperation` that prevents use of secondary object representations during mapping.
Add conditional compilation to avoid EXC_BAD_ACCESS when built with iOS 6.0 deployment target. fixes #1436
Add @parent to access parent source object
Change the house ID in our second test so that the tests don't step on each others' toes
Examine the relationship mapping's sourceKeyPath and provide the immediate parent within the representation
Add support for the @root pseudo-key-path
Add additional tests and documentation for the parent/root mapping support. refs #1435
Fix JSON syntax error in examples. closes #1437
Obtain a strong reference to the dataSource within `RKMappingTet`. closes #1433
Fix build breakage due to missing set up/tear down in `RKObjectMappingNextGenTest`
Rakefile: Prevent 'rake docs' from failing silently when appledoc is not installed
Merge pull request #1443 from paulmelnikow/rakefile_appledoc

Rakefile: Prevent 'rake docs' from failing silently when appledoc is not installed
Docs: RestKit does not seem to ship with Appledoc binaries
Rakefile: Remove template path from appledoc invocation

With the template path included, docs refuse to build. By creating an empty folder, docs start to build but then fail with "Object template file 'object-template.html' is missing" error.
Fix incorrect usage of a couple of classes
Fix issue with incorrect property declaration in `RKHuman` test model interface
Merge pull request #1445 from paulmelnikow/building_docs

Fix 'rake docs' and related documentation
Conditionalize test so that it passes under iOS 7/10.9
Add support for registering custom `RKMappingOperationDataSource` implementations with `RKResponseMapperOperation`. closes #1442, #1447