add rspec for ability
add database_cleaner
modify the rspec of ability
add rspec for question and answer
Merge branch 'master' of git://github.com/jerry134/web6ey
Merge pull request #69 from caok/master

add rspec for model
Merge pull request #70 from Jael/master

显示所有tags
modify the rspec error for tag
fixed spec for tags
Merge pull request #73 from hlee/master

fixed rspec test tags
assets for heroku
remote heroku deploy
format tag
Merge branch 'tag'
modify the show of tag-cloud
modify the show of tag-cloud
added travis support
remove sqlite3 from travis
only mysql for travis
Merge pull request #75 from hlee/master

deploy only