-[RKPaginator cancel] invalidates objectRequestOperation.
Enable support for mapping values in @metadata as relationships. fixes #1506
Add test coverage for RKObjectResponseMapperOperation's HTTP method-based matching (refs #1510)

The test checks to make sure RKObjectResponseMapperOperation filters the
provided response descriptors based on the HTTP method (and not just by
URL and status code).
Merge pull request #1502 from shsteven/development

-[RKPaginator cancel] should nil out objectRequestOperation
Support for responses with no Content-Type where appropriate
Simplify testing route for no content tests using `Sintra::MultiRoute` from sinatra-contrib. refs #1535
Alias Prefixed Names for RKAssignmentPolicy
Add deprecation comments to old RKAssignmentPolicy values
Merge pull request #1539 from segiddins/development

Alias Prefixed Names for RKAssignmentPolicy