font for xmms/winamp2 skins is supported (the bitmap must have the
  following layout: [0123456789 -] with letters of size 9x13).
  Non-digit characters are just skipped, with a hardcoded advance of 6
  (it allows correct display of time in xmms skins; the ':' are skipped)
  Small example at http://people.via.ecp.fr/~asmax/chaos.vlt (uncomplete skin)
  * vars/time.cpp: notify the observers also when the input is stopped
  * controls/ctrl_text.cpp: do not reset the FSM state and timer when the
  text is displayed (was causing bugs in time display)