Fix for sfxr export problem
Merge pull request #392 from diizy/stable-0.4

Fix for sfxr export problem
.gitignore: Add /target
SaveDialog: Switch order of mmp and mmpz

Fixes #386.
When selecting the filter in the file save dialog, the file name used to change to *.mmp. As this is not desired, this commit changes it to '.mmpz'.
Merge pull request #393 from Lukas-W/stable-0.4

Fix #386; Add target to gitignore
Fix zynaddsubfx export with higher samplerates
Merge pull request #395 from diizy/stable-0.4

Fix zynaddsubfx export with higher samplerates
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