Since this requires .Net 3.0 I've left it out of the project by default. Nant files may need to be edited to exclude it.
To use this: include it in the project and add a reference to the System.Speech.dll
It's like turning off Close Captioning! All y'all just gotta try it.
git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@797 52acb1d6-8a22-11de-b505-999d5b087335