* Added AvatarPreview to trunk
* Switched from OpenSim Prebuild.exe to latest official SVN checkout
* Replaced Exe with WinExe where appropriate in prebuild.xml
git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@1983 52acb1d6-8a22-11de-b505-999d5b087335