Changes in 1.8.4

- Changed the codec for AVI writing again. Thsi time to video1 which 
  everyone should have.
- Some fixes to the EnSight readers
- BUG: (bug #1508) In the CopySelections method of vtkDataArraySelection,
  check whether the array names and settings of the input
  vtkDataArraySelection match this one before actually copying.  Without this
  change, the EnSight reader was being modified when nothing had actually
  changed, and so it was re-executing unnecessarily.


Changes in 1.8.3

- Added support for writing AVI animations on Windows platforms

- Fixed "IntegrateAttributes" to work in parallel.

- Added three filters to the filter menu.
   1) Integrate Attributes: Integrates attributes over 2D surfaces.  Creates
   one point and one vert in output.  Point and cell data for this point and
   cell contain the integrated values.  A new "area" cell array is created.
   All of the integrated attribute values are displayed in the GUI.

   2) Surface Vectors Will either project vectors onto the surface, or give
   the component of the vector perpendicular to the surface.  The new output
   vector point attribute has the same name as the input vector attribute.  A
   glyph filter is still needed to show the vectors.

   3) Surface flow.  Outputs a point and vertex.  It integrates the dot
   product of a vector field with the surface normal.  It puts the result in
   a attribute called surface flow.  The value is also displayed in the GUI.

Changes in 1.8.2

- added log10 button to calculator
- fixe the array calculator to handle cell data
- fixed memory leak in MPI sends for vtkParallelRenderManager
- fixed a "no-input" issue with vtkDistributedDataFilter (D3) 
- fix for non-IceT compositor and offscreen rendering accessing the display
- fix for the Data Caching on the Animation Tab
- fix to updating contour filter scalar range 
- fix for EnSight readers to better handle valid EnSight files
