* Reset default note range to 0..127 for step-entry and other users
* Allow to print label "C-<n>" on keyboard
* Fix 6 octave note range
* Save/load user settings in virtual-keyboard window
* fix key-range off-by-one 0..127
* allow to shift octave
* allow to configure note range
* highlight grand-piano range and keyboard-shortcut range
* proper piano layout (black key offsets)
* add support for DVORAK keyboard layout
(still incomplete: settings are not yet saved/restored,
_piano_key_velocity should become a HSliderController, ...)
* allow gtk_pianokeyboard to respond to y-axis click position
and include MIDI velocity with note-on signal
* add configuration settings to virual-keyboard
min/max velocity, keyboard-layout
* add a CC7 controller knob
Copyright-holder and year information is extracted from git log.
git history begins in 2005. So (C) from 1998..2005 is lost. Also some
(C) assignment of commits where the committer didn't use --author.