Synfire 2.3.3

This version fixes issues with external synchronization and Drones. MTC and MMC are now fully implemented and working. The DAW tutorials have been updated accordingly. ReWire is no longer installed on macOS by default. If you still want to use it, you need to enable it manually when installing Synfire.

Synfire 2.3.3

Feature Enhancements: 
- Audio Engine 4.5.0
- Audio Engine: Improved MTC/MMC synchronization
- External Sync: Added MMC device ID configuration
- External Sync: Added MMC preset to protocol menu
- External Sync: Added OSC host parameter configuration
- External Sync: Improved timing and protocol compliance with MTC, MMC 

Resolved Bugs: 
- External Sync: Preferences got lost or changed unpredictably
- External Sync: Latency setting falsely interpreted as seconds
- Editor: Drag copy multiple symbols duplicated them multiple times
- Fixed issues with changing slider values with arrow keys and mouse
- Display of pause parameter was wrong in overview
- Library: Preview remains silent if started very late in arrangement
- Library: Fixed issues with phrase preview
- External Sync: Export to DAW starts playback in DAW
- Drones: Original Drone sometimes not found in DAW on startup
- Drones: Save As ... messed with DAW connection to Drones
- Drones: Playhead position not properly forwarded to guest plugins

Other Changes: 
- Audio Engine: No longer install ReWire bundle by default
- Increase Chromatic parameter range on slider to 5 octaves
- Drones: Reclaiming a Drone should merely unlink it from the previous owner
- Sparks: Don't use global zoom by default
- Drones: Playback mode should only be switched manually