Add Annkissam sponsor to home page.
Added logos to /sponsors, with CSS for layout.
Add TA bio
Add room & floor
Add sponsor
Add Terrible Labs logo & place on index page.
Add more sponsors to 'sponsors' page, with CSS tweak.
Remove 'Registration is open' and enhance 'sign up for next time'

... on home page. Closes #56.
Add instructor informational page.
Fix Microsoft URL
Add Lydia's bio
Remove Samantha due to scheduling issues.
Merge pull request #57 from railsbridge-boston/reg-closed

Remove 'Registration is open' and enhance 'sign up for next time'
Randomize sponsors
Replace Annkissam logo.
Increase home page spacing between logos now that they're randomized.
Remove LevelUp until we get confirmation of sponsorship
Add Yesware sponsor logo.
Slightly increase padding below sponsor logos on index page.
Reuse sponsor logo generation in :index and :sponsors pages.