Update to bootstrap 3.1.1
Increase bootstrap's "sm" grid for landscape mobile

In order to account for a good UI experience in landscape mode, we must
stretch the “sm” bootstrap category from where it was at 768-992 to
instead 560-992.  This reduces the size of the “xs” category to just
the portrait mobile view, and not the landscape as well.
Add header, update UI look/feel

Add a header which contains a WIP link to the “profile” page, which
would be used to update games for a user.  Also update the general look
and feel of the app with this new nav addition.