focus input#comment

Conflicts:
	views/facebook.coffee
	views/main.coffee
[WIP] facebook login
[WIP] remove twitter login
focus input#comment
remove omniauth-twitter in Gemfile
rename logs to done
[WIP] show profile_icon from parse.com (not twitter.com)
revert Util.time
add initComments
user ParseParse in Comments
update doms
forbid double comment