Add Profile UI
Add Comments to user
Merge branch 'master' into kaiwei/add-commentable

Conflicts:
	db/schema.rb
Merge pull request #7 from jaaaaared/kaiwei/add-commentable

Add Comments to user
Merge branch 'master' into kaiwei/integrate-bootstrap

Conflicts:
	db/schema.rb
Merge pull request #6 from jaaaaared/kaiwei/integrate-bootstrap

Add Profile UI
Merge branch 'master' into jcao
.