- Re-worked the why-attend page with Rick Mercer announcement + photo in prominence.
- Made the Rick Mercer photo placement mobile-first and responsive. On narrow screen, the photo is full width. One step up, it's half width and floated right. On larger devices, it takes up one-third of the width.
- Made text edits to the why-attend page
Merge branch 'v4.0a---Register-three-branches' of github.com:CANHEIT/CANHEIT-2013 into v4.0a---Register-three-branches

Conflicts:
	css/screen.css