awesome: unique scratch windows
awesome: homerow for directions, down/up/left/right
Revert "awesome: homerow for directions, down/up/left/right"

This reverts commit 7813ad721254c3290f42b77d3d9b9e32da9cf5ca.
awesome: change kill keybind
awesome: use as wm inside xfce, adapt quit()
awesome: add mpd widget for certain hosts
awesome: set new clients as slave
awesome: move client to next/prev screen
awesome: use awful.tags.swap