[vtkusers] Pending release vtk3.2; eliminating native imaging classes; deprecating methods

[Will Schroeder]

Hi Folks-

We are planning to cut a formal release very shortly: vtk3.2. One of the 
things that we'd
like to do is to eliminate the native imaging classes (like XimageMapper, 
Win32ImageMapper, etc.
those classes listed in the VTK_USE_NATIVE_IMAGING #ifdef in 
vtkImagingFactory.cxx). (These
have been replaced for some time with the OpenGL equivalents (like 
OpenGLImageMapper).) Please
complain immediately if this is an issue.

In addition, we are adding deprecation messages to a number of methods in 
vtk that have been obsoleted
in preference to other methods. These deprecated methods will exist until 
the next release, at which point they
will be eliminated.

Feedback is welcome,
Will