12.1.md
12.2.md
12.3
12.4
Merge pull request #153 from hongruiqi/review

12.x
fix exists check
Merge pull request #154 from hongruiqi/genepub_fix

fix exists check
11.x
Merge pull request #155 from hongruiqi/review

11.x
Merge pull request #2 from astaxie/master

update