[DO NOT MERGE] --- Fix/marco/lms sasscleanup

Hi @talbs and @frrrances, this is a pull request to show what css comb did when I ran it through the LMS and CMS gauntlet. I dont know that the best way to do this is all one one go, so I don't want to merge this pull request, but I thought I'd put this out there in case others had comments on this csscomb integration.

http://csscomb.com/about/

CSS Comb has a plugin for a number of different code editors, so once we decide on our edX css property ordering, we can publicize the settings files necessary to quickly sort css properties.  Then, (at least in Sublime Text 2), its as easy as CTRL+ SHIFT +C to properly sort all the properties in the file you have open.