Forgot to commit my last few config dialog fixes, apparently. Oops.
Settings weren't being updated if the audio output type changed.
Fix stuttering audio when using certain custom audio sources with the DirectShow plugin.
Merge pull request #136 from lmurray/master

Noise gate plugin (Noise reduction)
fixed some bugs with the new directshow audio output code
and one more tiny fix to directshow code again
and it appears there were countless more if(!bDShowHasAudio) that were supposed to be if(bDShowHasAudio)
more fixes to the new device code, and some undos of my earlier code