Merge pull request #12 from jcabi/master

merge from master to my branch
Merge pull request #13 from jcabi/master

merge to my branch
Merge pull request #14 from jcabi/master

merge from master to my repo
Merge pull request #15 from jcabi/master

merge from master to my branch
Merge pull request #16 from jcabi/master

merge from master to my repo
Issue #18 - Gist.java:55-55: Gist comments was implemented
Issue #18 - fixed
Merge pull request #189 from lthuangiang/18

#189: pull request Issue #18 - Gist.java:55-55: Gist comments was implemented