Merge pull request #1 from toieeKC/master

Equipped "turtle me" by adding turtleme.coffee
Add `github emoji` action

$ github emoji zzz
#-> https://assets-cdn.github.com/images/icons/emoji/zzz.png?v5
Add cache folder
Ignore cache files
Accept multi emoji passing on emoji action
Fix send message each emoji on emoji action
Fix returning url
Merge pull request #2 from big2men/multi-emoji

Accept multi icon passing