Focus the default window when windows are destroyed
Add a basic README
Generalize window ID tracking

Make a global "xid" namespace. This is so we can introduce
pixmaps as new resources, and have them be drawables as
well.
Rework directory structure
Add our own custom cursors
Add some credits for the images
Actually measure text metrics

Instead of doing something that's platform specific.
Punt the background to the server

This removes some large flashes of uglyness.