Issue #604 - VisibilityTest
task 378:  implement the methods of MkContent: 1) compareTo, 2) json, 3) patch
#650
#461: Retrieve comments for a specific pull request
Issue #644 - Gist should be JsonPatchable
#461: Add changes from review comments
#658 fixed fetchLabelsRO() test in IssueTest
#461: Applied code review comments
#461: More code review comments
#660: Add mocking to test
Merge pull request #667 from hildo/iss461

#667: pull request #461: Retrieve comments for a specific pull request
Issue #604 - VisibilityTest
Issue 528. RtReleaseAssets wrong request fixed. Ignore annotation removed in integration tests.
Issue 645. Gists.create doesn't allow specifying visibility bug fixed.
Issue #550 - RtRepoCommits uses wrong compare request URI
Issue #550 - Fixed
#461: Retrieve comments for a specific pull request
#461: Add changes from review comments
#461: Applied code review comments
#461: More code review comments