arbtt: unfix late-evening rule, it was correct
xsession: don't use hardcoded path to stumpwm
xsession: abstract away tray gravity value
xsession: try volumeicon (primarily to display Master value)
xsession: fix xmodmap command for turning CapsLock off
xsession: process rtags harness
xorg.conf/input: added template for toggling CapsLock on/off