Fixing warnings.

Change-Id: I94576f936162f7b014444510878081401fa0e9c2
Added new baseline to help pv.SLACTools test pass.

Change-Id: Id00fb6fd826cdc28f248b24cb4ffcc33cc0cf807
Discovered another baseline that needed to be update for SLACTools tests.

Change-Id: I610e9df0567e2682f9d9b8396556cea0c1360621
When ParaViewData is excluded, tell VTK to exclude VTKData too

Since commit 29e4cc2c (Add option to exclude ParaViewData target from
default build, 2014-06-04) the PARAVIEW_DATA_EXCLUDE_FROM_ALL option is
available to control ParaViewData.  VTK now has an equivalent
VTK_DATA_EXCLUDE_FROM_ALL option.  Teach ParaView to control VTKData by
setting VTK's option based on ParaView's option.  When the data targets
are excluded from the default build, make ParaViewData depend on VTKData
so that both can be built through a single invocation by the user.

Change-Id: I70ca75c9608006ab78477dd10ecf0995fa9740df
vtkSpreadSheetView: fix NULL passed to vtkSpreadSheetView

Change-Id: Ia1552250dc6cbea6e3f5e66f2a46e9b762cb7be8
BUG #14794: Reenable parallel volume rendering for images.

During VTK refactoring of extents, parallel volume rendering was broken.
Fixing it by bringing back vtkPExtentTranslator (formerly called
vtkPVTrivialExtentTranslator) and making vtkImageVolumeRepresentation
use it to determine image extents across all ranks.

Also added a new test that tests volume rendering in parallel.

Change-Id: I72d06d0bebf14f71f7db6a2a345f668fa63ad16b
Merge topic '14794_fix_parallel_image_volume_rendering'

1a51d03f BUG #14794: Reenable parallel volume rendering for images.
Merge topic 'fix-null-stdstring'

cebd7540 vtkSpreadSheetView: fix NULL passed to vtkSpreadSheetView
Merge topic 'fix_warnings'

68418799 Fixing warnings.
Merge topic 'manual-ParaViewData-controls-VTKData'

137fe0d0 When ParaViewData is excluded, tell VTK to exclude VTKData too
Merge topic 'pv-add-extra-slactools-baseline'

e93d7718 Discovered another baseline that needed to be update for SLACTools tests.
f7b9415f Added new baseline to help pv.SLACTools test pass.