update assets for heroku
Merge branch 'master' of https://github.com/erwinkarim/wecool
issue #68: create floating div about feedback
issue #68: add popover, insert feedback from later
Merge branch 'issue68' of https://github.com/erwinkarim/wecool into issue68
add a popup form to enter feedback from users
issue #68: add mailer, javascript animation to send out feedback
issue #68: add ok button after sending, adjust font design, precompile new assets for production
issue #68 : update from field if user is logged in
issue #68: add more info (screen name for logged on users, url) when sending out email
update assets for heroku