When paused, it is still possible to jump around in
the file via the jmp and ff commands.
[/description]
+
+[subcommand tasks]
+ purpose = print list of active tasks
+ [description]
+ Mainly useful for debugging.
+ [/description]
+
+[subcommand quit]
+ purpose = exit para_play
+ [description]
+ Pressing CTRL+D causes EOF on stdin which also exits
+ para_play.
+ [/description]