Zyn fix: export now fully works with GUI either open/closed
Fix #397 (presets with input velocity = 1)
Make sfxr use noteplayhandle, to enable velocity and env/lfo tab
Small tweak to the knob code, make the acceleration curve smoother and less "sudden"
Make LcdSpinBox double-clickable to enter value
When saving new version of a project, skip already existing version numbers
Merge pull request #396 from diizy/stable-0.4

A bunch of bugfixes