Better column breaks on user profile

To prevent text from overlapping adjust the user profile sidebar to be
wider on smaller displays.
Adjust user menu to accommodate watched repos

Admins in addition to the regular user menu items also have a watched
repos link which wraps at the current menu width this adjusts the menu
width so this link no longer wraps.
Adjust community stats wrap

Adjust the size and padding of community stats so they don't wrap on
smaller display sizes and can handle large numbers.
Adjust beta banner so it works in Firefox

Firefox users should also enjoy the beta banner adjust the styles/markup
so they can.
Fix collaborator dropdown font

The collaborator dropdown font shouldn't be times new roman.
Adjust collaborator dropdown

Since hover doesn't work so well on mobile anyway changes dropdown to
only display when avatar is clicked on and also resolves some visual
issues with the dropdown.
Refine breakpoints a bit more

Refine breakpoints for cookbook stats a bit more remove some unused
SCSS.
Move collaborator markup back into gravatar container
Merge pull request #448 from opscode/wrapping-issues

Wrapping Issues