Simplifying themes
WIP
WIP
Added theme-selector
WIP
WIP2
Added .l-plr-small
Added --text-color-minus
Removed change in  box-shadow to prevent reflow
Corrected media header background color
Remove non-theme releated files
Merge branch 'dev'

Conflicts:
	base.css
	modules.css
	style.css
v0.4.0