Changed Scene_viewer_[gs]et_transform_rate into three separate functions for translation, tumble and zoom rates and added these into the API.  This is a deepening of the patch from Andrew Miller.
Changed Scene_viewer_[gs]et_transform_rate into three separate functions for
translation, tumble and zoom rates and added these into the API.  This is a
deepening of the patch from Andrew Miller.


cmiss/cmgui,cmiss/cmgui