The project name is changing from status-bar to xrsb (for X root
window status bar), so the scheduler is called xrsbs.
The scheduler sends the SIGUSR1 signal to a daemon that is
responsible for maintaining and updating the status (X root window
name property). The daemon will determine which actions to perform
based on the files present in the action directory and remove the files
once the actions are performed, so the scheduler creates action files
just before sending the signal. The scheduler can send one signal to
perform multiple actions by creating multiple action files, and can
create the action file(s) and send the signal immediately,
after some delay, or repeatedly at some interval.
