setscreens: workaround for Debian bug #718269

xfce4-power-manager segfaults sometimes when changing screen layout.
See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=718269
URxvt:  don't send modifier keys as 8th bit (breaks vim)
backup: also save mails from server
backup: check for missing ssh keys
setscreens: wait 5 seconds for xrandr to complete the process, then do stuff that probably conflicts with xrandr process
add tmpenv script
add .XCompose as example