Issue #276 Test case for RtRepoCommits.
Issue #276 Added test case for RtRepoCommits.
Merge remote-tracking branch 'upstream/master' into 276
Issue #276 Reviving the mistakenly  implemented test for getCommit.
Issue #276 Fixing TODO
Issue #282 Created ReleaseAsset, ReleaseAssets interfaces
Issue #282 Created RtReleaseAsset, RtReleaseAssets,
RtReleaseAssetITCase, RtReleaseAssetTest
Issue #282 Created MkReleaseAsset and MkReleaseAssets classes
Issue #282 Created RtReleaseTest, RtReleaseAssetsTest,
RtReleaseAssetsITCase. Moved release asset-related tests and puzzles
from RtReleaseTest to RtReleaseAssetsTest.
Issue #282 Implemented RtReleaseAssets.upload()
Merge branch 'master' into 282

Conflicts:
	src/test/java/com/jcabi/github/RtReleaseTest.java
Issue #115 Introduced Git Data Interfaces
Issue #115 Added RtGit, MkGit implementations of Git interface
Issue #115 Added puzzles for further Git API tasks.
Issue #253 Implemented MkHooks.remove()
Merge pull request #454 from carlosmiranda/253

#454: pull request Issue #253 Implemented MkHooks.remove()
Merge pull request #442 from carlosmiranda/282

Issue #282 Implemented Release Asset Uploads
Merge remote-tracking branch 'upstream/master' into 276
#276 Updated the RtRepoCommitsITCase to match the styling rules.
Merge pull request #453 from carlosmiranda/115

Issue #115 Implemented Git Data API