Updated all dependencies: most importantly Express went from 3.x to 4.
Fixed duplication of navigation links when multiple browsers issued a post at the same time.
routes.js replaces server.js and is is mostly promise-based now.
Removed win32 as a supported platform (anything else should work).
Changed design of default top navigation.
Added logout functionality.
Refactored routes renderNode to use promises.
Fix: Login page was not showing navigation.