remove rails/test_unit
add rspec
modify user_nav
add time_zone and zh-CN
Merge pull request #12 from caok/rspec

add Rspec
add tags crud support
themed tags
auth tag manage
show list Tags nav in application.html.erb
add tag support use acts-as-taggable-on
add bootstrap-will_paginate
Merge pull request #17 from jerry134/bootstrap-will_paginate

add bootstrap-will_paginate
added relation between question and user
column for relation
delegate to user
Merge pull request #18 from hlee/master

relation between user and question
partly Fixed #1
Fixed #21 update rails 3.2.13
Merge pull request #23 from hlee/master

update rails to latest
Fixed #21
added annotate for source comment
added some comment to model