Refactoring across the board:
	- Consolidated settings under _settings.scss and _defaults.scss
	- Made responsive system mobile first (see: http://jakearchibald.github.io/sass-ie/)
	- Made spacing a bit more consistent between files
	- Added more conditions to output, working towards a “silent” package (access to all vars/placeholders/mixins, no output, allowing creation of light-weight page-specific stylesheets)

Specific changes:
	groundwork-ie.scss
		- Rewritten to be served as one file to IE lte 8 (previously multiple files served to IE lte 9). Note: Must be blessed due to IE 8/9 4095 selector limit (see: http://blesscss.com/)
		- Replaced with copy of groundwork.scss with $fixed-mqs defined (kept additional fixes at bottom)
	core/_defaults.scss:
		- (Consolidated options here)
		- Added “Environment” section, which controls behavior of every module
		- Added var “fix-mqs”, defines a breakpoint to flatten media queries about (useful for IE8 fallback)
		- Added var “web-fonts”, works same way as “placeholder-fonts”
		- Added var “responsive-headings”, defines use of truncated/resizable headings
		- Replaced breakpoint vars with new set:
			- {breakpoint}-name: selector for breakpoint
			- {breakpoint}-mqs: minimum width for breakpoint (not defined for mobile, since this is mobile first). May be any unit
			- Removed retina selectors for now (they weren’t really used)
	core/_mixins.scss:
		- Replaced “hamburger-mode” mixin with “bar-mode” mixin (nav is mobile by default)
		- Added media query mixins, explained here http://jakearchibald.github.io/sass-ie/
	responsive/_helpers-responsive.scss
		- Removed. No need due to mobile first approach
	responsive/_mobile.scss
	responsive/_small-tablet.scss
	responsive/_large-tablet.scs
	responsive/_desktop.scss
		- Rewrote to override each other by cascading, (making IE8 support as easy as setting “$fix-mqs”)
		- Added breakpoint name interpolation to helper classes, navigation
		- Removed $responsive check for now (since fallback is possible in another way)
		- Changed “hamburger-mode” call for “bar-mode” call
	type/_typography.scss
		- Normalized element margins to $gutter
		- Added margins to block quote, pre, code
		- Wrapped responsive headings in var check
	type/_webfonts.scss
		- Wrapped normal web fonts in var check
	ui/_forms.scss
		- Wrapped suffix/prefix/errors in var check
	ui/_nav.scss
		- Rewrote to flip hamburger and bar-mode navigation (nav is mobile by default)
	docs
		- Changed IE conditions to server groundworks-ie.scss at IE lte 8

New features:
	- Added $fixed-mqs, which turns media queries into @if-then blocks. Useful for IE 8 fallback stylesheet (as explained above).