removing additional template/FED comments not needed for production
reducing amount of CSS bloat caused by support Sass
revising UI and visual styling

* proofing for specific LMS UI constraints
* proofing for poor LMS selector, styling, cascade work
* general markup/UI sync up
* aligning step-based icons different
* cleaning up small visual inconsistencies
Merge pull request #129 from edx/talbs/ui-lmsproofing

Proofing UI in General and for LMS Context