update capybara scroll

- no longer creating request rspec
- create capybara support for cucumber
update rvm scroll
add capybara-webkit scrolls
rename bootstrap sass to use underscore instead of dash
use only bootstrap sass scrolls
more verbose about callbacks running
use topological sorting to sort scrolls
improve bootstrap sass scroll

- require sass scroll
- supply description and website
improve sass scroll

- rm application.css and create new application.css.scss
improve compass scroll

- import compass in application.css.scss
- run after sass scroll