Xresources: Remove all window decoration, clean up file
tmux: decrease status-interval to 5

There are some semi-realtime stats in it, so having it update often is
useful
tmux: Respect the MPD_HOST environment variable in music.sh
Xmodmap: Remove some rubbish
rxvt: Made background colour consistent with panel
Add process 'path' to PS1 (eg bash/vim/bash)