Issue-832. Markdown mock implementation added.
Merge branch 'master' of github.com:aistomin/jcabi-github into Issue-832
Issue-832. Fixes after code-review.
Issue-832. Strings duplication fixed.
Issue-832. Fixes after code review.
Issue-833. NullabilityTest.java fixed and unignored.
Merge branch 'master' of github.com:aistomin/jcabi-github into Issue-833
Issue-833. Some fixes after update from 'master'.
Issue-833. Puzzle removed.
 Provided repo vs. Generated repo #808

Provided repo vs. Generated repo #808
Merge branch 'master' of https://github.com/jcabi/jcabi-github into jcabi-master

Conflicts:
	src/test/java/com/jcabi/github/RtIssueITCase.java
	src/test/java/com/jcabi/github/RtMilestonesITCase.java
Merge branch 'jcabi-master' into issue808
#870 - remove unuse import
Merge remote branch 'fork/Issue-832'
Merge remote branch 'fork/issue808'
rultor config
added MkGithub.randomRepo with test
formatting fixes
#875 done
#875 config fixed