MUTOOLS updates MU.LAB to v2.04

MUTOOLS has updated MU.LAB to v2.04.

Changes:

• Tuned: When using a Track Target, the "Choose MIDI Channel" in the sequence part context menu is disabled.
• Tuned: Meta Parameter Map Editor: Right-click in background shows "Add New Mapping" option.
• Tuned: Meta Parameter Map Editor: Options menu now also includes "Add New Mapping".
• Tuned: Single click on multiple selected parts/notes selects that single part/note.
• Fixed: Dragging stuff from inside MU.LAB to the outside (e.g. Desktop) caused a crash. Note that this not yet a supported operation, but now it doesn't cause a crash anymore.