Issue #604 - VisibilityTest
Issue #644 - Gist should be JsonPatchable
Issue #604 - VisibilityTest
Merge pull request #70 from jcabi/master

merge to my repo
Merge pull request #71 from lthuangiang/master

merge to my repo
Issue #644 - Gist should be JsonPatchable
Issue #604 - VisibilityTest
Issue #604 - VisibilityTest
Merge pull request #631 from carlos-a-crespo/issue-604

#631: pull request Issue #604 - VisibilityTest
Merge pull request #672 from lthuangiang/644

#672: pull request Issue #644 - Gist should be JsonPatchable
Merge pull request #3 from jcabi/master

Merge content from origin