add assets for heroku
revert to working version
and update bundle and assets
use postgres
add assets for heroku prod
Merge branch 'rspec'

Conflicts:
	public/assets/application-624dadfc86ffdd8d9993d0c814d50775.js.gz
	public/assets/application-c11a6bf2f1c04e0bd62acfa5f3e91ac9.css.gz
	public/assets/application.css.gz
	public/assets/application.js.gz
works now for pg and not rspec
rollback rails-backbone to 0.8.0
recreate assets after rails-backbone rollback