* Add widget for cmus (follow mpd conventions)
* Add widget for cmus (follow mpd conventions)
* Add default socket address when XDG_RUNTIME_DIR is not set
* cmus: use on/off instead of true/false
- default value was a boolean which is not valid in our format function
and would lead to a crash
- on/off seems more human readable
* cmus: shell-escape user supplied variables
* Add default socket address when XDG_RUNTIME_DIR is not set