add close for question
modify ability for close-question
add rspec for question's closed
do not show the question of closed
modify travis.yml
moidfy travis.yml
added assets for heroku
remote asstes
Merge branch 'master' into close_question

Conflicts:
	db/schema.rb
Merge branch 'master' of git://github.com/jerry134/web6ey
Merge pull request #141 from hlee/master

for heroku only
Merge pull request #138 from caok/close_question

Close question
Fixed #125
assets for heroku
modify the sidebar
modify something in the show of question
modify the show of question, fix the bug of closed
Merge branch 'master' of github.com:caok/web6ey

Conflicts:
	app/views/questions/show.html.erb
add capistrano and unicorn
add capistrano and unicorn
add capistrano_database, modify deploy