Mass Changes

1. condensed and cleaned up main.scss
2. replaced ptv-branding with control-file to reset bootstrap variables
3. changed all font-sizes to REMs (w/PX fallback)
4. made some edits to several html files for responsive, add/remove
rows and spans
Merge branch 'responsive-merge' into responsive

Conflicts:
	app/views/header.html
	app/views/main.html
Merge branch 'responsive' into develop