Automated Panel Selection

With this update, the keysets now identify which groups of panels
they are associated with.  These panels are now chosen automatically.
The manual panel group selector has been removed.  The UI has been
modified slightly, moving the favorites button up into the menu, and
removing the device browser (for now).

The tab bar can also be moved to the bottom of the screen.

The new (scaleable-friendly) Pierogi icon has been added.

Also, new fan keysets for Airtech, Lasko, Russell Hobbs, and Sylvania.