Beginning of big CSS refactor

Mainly moving files around and @Imports
Everybody is a partial! (fixing asset pre-compilation)
More liberal gitignore
Moved a whole ton of CSS, emptied out rug.css :)
Fixes a bug with link_to on High Voltage pages
Cleaning-up style page, moving some CSS
More explanations and copy tweak
Moving folders
Burn the filthy rug. Nobody liked it anyway.
Shush Hound
Get rid of rug import
Merge branch 'warpling-CSS-refactor'
Updates to styles and _nav lost in the refactor