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.
Merge pull request #87 from jcabi/master

merge to my repo
Merge pull request #88 from jcabi/master

merge to my repo
added MkGithub.randomRepo with test
formatting fixes
#875 done
#875 config fixed
#875 versions updated
#875 versions updated
#875 jcabi-http back to version 1.7
Added SmartJson#hasNotNull. Added tests.
Ignored PMD.AvoidDuplicateLiterals for not null messages for method parameter names.
Little optimization.
#875 public ctors
#875 config
fixed name length
fixed pom.xml