Domemaster3D v1.6 Alpha 7 Update

Recompiled the mental ray domeAFL_FOV_Stereo shader for
Windows/Mac/Linux to implement the RZ optimized code, added the xB maya
shelf tool, improved the ability to move the Maya Domemaster3D folder to
a network volume or a user's personal documents folder, updated the
LatLong_Stereo.mi and domeAFL_FOV_Stereo.mi file to set the default
camera separation value to 6.5 cm.