Initial SASS copy

Darkened colors are now correctly darkened to match Bootstrap (I think,
vs what we had before) and the button/nav Bootstrap copy stuff remains
unchanged from the CSS.
Ignore exported CSS
Add border-shadow mixin partial
Better nesting
Merge branch 'master' into sassy-spassov

Conflicts:
	.gitignore
Condense button things
Merge branch 'master' into sassy-spassov
Remove slideshow css

We don't need it anymore!
Marginally better margins
Parent+Placeholder isn't ready yet, work around it
Merge pull request #170 from teslaworksumn/sassy-spassov

SASSify