Changelog:
- Fix carla-control not handling CLI argument for custom address
- Fix carla-plugin not handling all callbacks
- Fix carla-plugin LV2 UI not showing up if host supports touch feature
- Fix for some plugin formats having 0 audio ports
- Fix occasional crashes due to canvas shadow (Qt bug, shadow is disabled by now)
- Fix canvas ports text width calculation with new Qt
- Fix wrong assertion with size 1 MIDI messages
- Fix errors in the icons
- Fix incorrect base conversion for MIDI CC assignments
- Fix rpath specification in pkg-config files
- Fix build with Qt 5.15
- Discovery: Force language to be "C" (English) so we can parse errors
- Discovery: assume midi inputs = 1 if VST plugin is synth
- Make canvas ports and groups ignore middle mouse clicks
- Improve performance of canvas "inline display" rendering
- Other miscellaneous bug fixes