Removed Bootstwatch CSS

Rolled into main CSS.
File layout fixes

CSS and JS were getting out of hand with CodeKit, so I normalized a few
things.
This is also mid-process of fixing around the navigator, so things may
be broken.
Theme change, part 1

* Mostly fixed the nav bar to top floating on ISteamApps.
 - Going to move to Cyborg theme soon, then re-address issues.
* Added Smooth Scroll.
* Added original Bootstrap variables.less for reference.
Fixed Bootstrap + Bootswatch confusion!

* Isolated the media queries needed for Nav float and moved to
steamdocs.less
* Switched over to "Cyborg" Bootswatch theme.