add badge model and spec
add comment model and show on activity#show page
extract activities style from application.css
add comment floor and time ago
activity comment is functional
convert activity comment create to ajax version
Merge pull request #198 from mouse-lin/master

cap deploy
Merge pull request #199 from williamherry/feature/activity-comment

Feature/activity comment
extract user info to partial and change layout
Merge pull request #201 from williamherry/improve/user-info

extract user info to partial and change layout
merge master
#200 what's the problem #202
add schema to gitignore
modify gitignore
Merge branch 'master' of github.com:bay6/union into issue_123
change id to rank
Merge pull request #204 from vincent178/master

READY: change id to rank
modify some user ability & finish hz page
Merge pull request #205 from bay6/issue_123

Issue 123  完成徽章基本结构。
merge