Add tests for rest_collection create
Add tests for rest_api/collection_list
Merge branch 'master' into collection_api_tests
Add :collection-list mime-type to test helper function. Updated collection list tests to use it. Updated :item-collection to :item-list for naming consistency.
Add tests for collection_retrieval
Fix minor test failure in collection delete
Merge branch 'collection_api_tests' of github.com:SnootyMonkey/Falkland-CMS into collection_api_tests
Merge branch 'master' into collection_api_tests
Improve collection retrieval tests.