Add fields to Delaunay3D to hide cells from the output

Change-Id: I39195955e0b1dc55d779bfcf991ba573f83caaa9
Update VTK to bring in various polyhedra fixes.

These fixes address #14258.

Change-Id: I061b08fdbeb1409ccfae2c63e0c34b7eaf6a822d
ENH: Paint checkbox in QHeaderView

Added new class that derives from QHeaderView and paints a checkbox on the
section header if the individual model items are checkable.
Currently the class is used in pqTreeView and needs to be standardized across
all views and widgets.
Removed old unused pqCheckableHeaderView and pqCheckableHeaderModel classes.
This fixes issue 14580.

Change-Id: Ib9f45794340823819eb3f59dba23461dead53f79
Merge topic '14258-remote-polyhedra' into next

36ce10ae Update VTK to bring in various polyhedra fixes.
Update VTK again

Change-Id: I943c1740fb37dae58fa7fee0140716d42379a233
Merge topic 'update-vtk-20140310' into next

913e59ce Update VTK again
Update VTK for Delaunay3D alpha properties

Change-Id: I42411b3d1ca694622fa210f646e8a607c83d002d
Merge topic 'delaunay3d-alpha-bools' into next

1f89d5d7 Update VTK for Delaunay3D alpha properties
452ab509 Add fields to Delaunay3D to hide cells from the output
Setting a better compressor for animation exporting

The VTK-default "MSVC" codec is old and has poor compression ratios.
Some research seems to indicate that "MP43" is supported on XP and is
at least half decent[1].

[1]http://www.moviecodec.com/solutions/mpg4-mp42-mp43-microsoft-mpeg-4-versions-1-2-and-3-5098/

Change-Id: I301f2723fac53036a9ecbabbcc6f823a5fcff5f3
Prefer FFmpeg's AVI compressor to Windows'

Change-Id: I1ba100fafdc46609849fc3b6d1fa1ee142f0fda4
Merge topic 'animation-movie-compressor-support' into next

52089a94 Prefer FFmpeg's AVI compressor to Windows'
ca412eb4 Setting a better compressor for animation exporting
cmake: Use ${var} instead of @var@

The latter works, but is not widely used or known. CMake with CMP0052
set will not expand it, so replace it with ${var}.

Change-Id: I528e2ba6d4172956df35e3fc8339090d881aca37
Merge topic 'fix-variable-referece' into next

44801406 cmake: Use ${var} instead of @var@
Merge topic '14580-top-level-checkbox' into next

9347b60f ENH: Paint checkbox in QHeaderView