accept text-entry-change w/o enter and add filter_text option
fix "stop_recording_on_xrun" in prefs dialog
allow to set custom file name for each diststream
implement track numbering
option to use track-number and take-name as part of file-name
bump take-name after every recording
session option GUI for track-number & take-name
prepare formatting track-number for mixer (and other places)
prepare UI style for track-number boxes
show track-number in GUI
fix meter-strip session/route-ui events