homepage title (subnav-path)
basic subnav layout; dropdown context-switcher (empty); disable text selection in .btn elements
show context-switcher only for staff members
avatar.png makes a valiant return
loading style for search inputs
context-switcher now works (still staff-only)
whitelabelling is back, and neater than ever!!
logout button (alas, tests are broken because zombie won't follow logout redirect)
Merge branch '20130221-subnav-context-switch'