Issue #265: Added an integration test for RtHooks.create()
Issue #266: Added tests for MkHooks.create(), MkHooks.get(), and MkHooks.iterate()
Issue #266: Implemented MkHooks.create(), MkHooks.get(), and MkHooks.iterate()
Merge branch 'master' into issue265

Conflicts:
	src/test/java/com/jcabi/github/RtHooksITCase.java
Issue #265: Updated RtHooksITCase.canCreateAHook(), minor fixes
Merge branch 'master' into issue265
Issue #265: Removed @Ignore from RtHooksITCase.canFetchAllHooks()
Merge pull request #431 from asinyagin/issue265

#431: pull request Issue #265
Merge pull request #399 from asinyagin/issue266

#399: pull request Issue #266