Radium 6.9.69 released

[Kjetil Matheussen]

This release contains some new features and some bug fixes.

Most notable change this time is that the "Main pipe" and the five effect buses have been converted from pipes to sequencer buses:

In addition, it's now configurable how many channels a sequencer bus has. By default a sequencer bus has 2 channels, but it can be set to any number between 1 and 99 in the "Song properties" window.

Changes 6.9.67 -> 6.9.69:

* Windows: Fix showing current system font when

  opening the "change system font" requester.

* Windows: Fix using "Lato Black" as the default

  system font.

* Editor: Fix hanging notes when recording MIDI and
  not using Jack. MIDI recording accuracy, though,
  is slightly worse now when not using jack for
  audio. This can be compensated by using smaller
  audio buffers.
* Load: Fix assertion window popping up when loading
  some songs. The assertion was innocent though. Bug
  introduced in 6.9.63.
* Song properties: Remove option to select 2 or 8
  channel main pipe.
* Song Properties: Add option to set number of audio
  channels for buses. (between 1 and 99 channels)
* Sequencer: Add seqtrack "Visible" checkbox to the
  seqtrack popup menu.
* Sequencer: Remove all audio file options from the
  Bus seqtrack popup menu.
* Sequencer: Disable ability to record audio files
  into Bus seqtracks.
* Audio: Only display used output channels in the
  audio meters for patch instruments.
* Audio meters: Make the default green color lighter.
* Audio: Convert "Main Pipe" and the 5 effect
  buses from pipes to sequencer buses.
* Audio: Rename "Main Pipe" to "Main Bus".
* Audio: Remove the "Enable piping" effect
  from sequencer buses.
* Audio: Make the "Main Bus" sequencer bus
  visible by default. The 5 effect buses are not
  visible by default.
* Macos: Fix importing mod files
* Internal: Various changes.
* API:
  * New: getInstrumentEffects, setInstrumentEffects,
    seqtrackIsPermanent, seqtrackIsBus, moveSeqtrack,
    internalReplacePermanent.
  * Let appendSeqtrack, appendEditorSeqtrack,
    appendAudioSeqtrack, and appendBusSeqtrack
    return the seqtrack number for the newly created
    seqtrack.
  * Rename sendSysex -> sendMidiSysex.