Fixes for Webaudio Csound

fix for OSX spinlock bug

typo in trim_i

 6.11.0

6.10 release with some minor changes

Merge branch 'develop' of github.com:/csound/csound into develop

fixed csound.js putting the handleMessage message handling setting ba…

…ck into place

Release for 6.09.1

tag 6.09.0