Sensomusic updates Usine to v2.64

Sensomusic has updated Usine to v2.64.

New features:

• Piano Roll Module.
• Array Concatenation Module.
• Change the MIDI channel in the MIDI Transformer Module.
• Tempo/Beat Detector (available as an add-on).

Fixed bugs:

• GVst plugins display update.
• Error message right after starting Usine on some systems.
• MIDI Learn on conductor previous and next buttons.