Extraneous linebreak cleanup
Support full title/toc/id for heading
Ensure URL and IDs lowercase at all times
Bring TOC scroll spy nav back within grid layout
Refine TOC styling
Merge remote-tracking branch 'origin/master' into curriculum-layout-and-js-tune-up

Conflicts:
	_stylesheets/page.css
Update CSS generated artifact
Fix odd white space

Previously broke JS parsing for heading and TOC build-out
Merge pull request #176 from github/curriculum-layout-and-js-tune-up

Curriculum layout and js tune up