formatting
format comments
update cheatsheet in preparation for a 0.8.0 release
fix spelling mistake
update changelog
add ixi snare drum
update cheatsheet
Remove gui widgets from this release.

I discovered a number of major issues with the couple of widgets I tested immediately prior to a 0.8.0 release. These need some further work and thorough testing before including in a final release. I'll create a list of issues in the tracker shortly.
remove gui widgets from changelog
mention ixi snare synth in changelog
get ready for 0.8.0