Merge pull request #7 from samdb/master

New sponsor and update to Engine Yard
Add Joe's talk.
Update Jeremy Bio
Placeholder page for cloud bar.
Add Glen's talk and bio
Added Rackspace to sponsors page
Added sponsors to all pages
Fixed em multiplication issue
Add track titles
Fix heading tags
Fix typo
Remove double hr
Updates socials info
Typo
Fix sponsors bar on schedule page.
Add cloud bar page.
Links to cloud bar page.
Merge branch 'cloudbar'
Make sphero pic smaller.
Updates to about section