v1.04: first public release

* peak and average (RMS) meters

* stereo and 8-channel operation

* meter scales: "K-20" and digital full-scale

* two types of meter ballistics, reset button

* mixing mode for changing the gain (pre-meter)

* validation of read-out

* GNU/Linux:  VST plug-in, stand-alone
  Windows:    VST plug-in, stand-alone