Fonts may not yet line up properly, especially in room_sim_3d where fontsize
is used to show z position. Also, no effort was made to improve the interface
of these classes. For example, size changes don't bump the source values
back within the bounds of the object.

ALSA MIDI backend: Quick and dirty fix for bogus zero-velocity note-off messages; output a note-on with zero velocity instead.

Added a "floatsize" method to [pdinfo]
Cleaned up the format specifier for [print] and gui_vmess
Got rid of unnecessary "l" in "%lg"

canvas_events