finished up the new example usage pages, fixed up more on the conditional helpers
added truncate lines jquery plugin, split kitchen sink into multiple demo pages, fixed #177
fixed category menu on ecommerce layout example
Merge branch 'master' of github.com:groundworkcss/groundwork

Conflicts:
	css/groundwork.css
	css/groundwork.min.css
	src/jade/template.jade
	tests/css/test-buttons.css
	tests/css/test-grid.css
	tests/css/test-helpers.css
	tests/css/test-typography.css
	tests/css/test-ui-elements.css
	tests/test-grid.html