Support full-width slide, updated TOC controls
Reposition TOC toggle

Far from perfect solution. Needs considerable refinement but resolves
layout for time being.
Merge remote-tracking branch 'origin/master' into deck-framework-update

Conflicts:
	_javascript/curriculum.js
	_layouts/curriculum.html
	_stylesheets/curriculum.css
	_stylesheets/curriculum.scss
Merge pull request #255 from github/deck-framework-update

Support full-width slide, updated TOC controls