add tags crud support
themed tags
auth tag manage
show list Tags nav in application.html.erb
解决冲突
解决冲突
Merge remote-tracking branch 'web6bey/master'
Merge remote-tracking branch 'web6bey/master'
Merge remote-tracking branch 'web6bey/master'
跟新代码
add I18n
remove empty file
Merge branch 'encoding'

Conflicts:
	app/controllers/answers_controller.rb
Merge pull request #53 from caok/master

Encoding:utf-8
Merge remote-tracking branch 'web6bey/master'
fiexed question css
Merge pull request #54 from songjiayang/master

finish the quetions css
Fixed issue that delegate owner