Add basic styling

[begedin]

• Asana task: Add some basic styling
• Branched off of #15, so the changelist is a bit useless at the moment.

• 15 is now merged, so the changelist shows the actual state

  Description

• I added foundation. It feels more feature-complete and look-agnostic than bootstrap.
• Foundation requires jQuery 2.1 so I added that one in place of our current 1.11
• The styles are very basic.
  • The general part of the site has a top nav.
  • The team part of the site has a fixed width sidebar.
  • All forms have proper default styles applied.

[venkatd]

Can review this one the other one is merged in.