responsiveness stuff to make the shortcut buttons move out of the navbar
and into the menu. Also move the admin stuff into its own menu.

This was a lot harder then it needed to be, but I did not like the standard
bootstrap navbar collapse into hamburger menu approach, it looked terrible
with our header, and takes up a TON of vertical space for no reason I can
see. I prefer the consistent menu display, regardless of screen width, so I
had to make a few tweaks to the dropdown class; bootstrap changes a bunch
of settings in a media clause, which makes the menus look stupid, again,
for no reason that I can see.