title: Heroku not updating css for rails app
body: <p>I'm having trouble updating my rails app on heroku.  I've gotten my app up but I tried to change my application.css file in /public/stylesheets/ but whenever I try to push to heroku, the CSS never changes.  I tested these changes locally and they work just fine, I just can't figure out how to push them to heroku.  I've tried pushing with    git push heroku, heroku db:push, and heroku rake db:migrate but nothing works.  Thanks for your help.</p>