Make settings tests more reliable (fixing widget naming).

Fixed how widgets are named in pqSettingsDialog to make test playback
more reliable. When plugins that added new settings were loaded, we were
ending up with failed tests since the names of the widgets in
pqSettingsDialog could potentially change. Fixed that.

Change-Id: I74f401f6b689cab39c7b2b69d6f18bf0120ae0bd
Merge topic 'lookup_table_cleanup' into next

eb1a26ee Make settings tests more reliable (fixing widget naming).
Fix errors in vtkUncertaintySurfacePainter.

Don't recompile and reinitiaze uniforms on every render. We just need to
do it during PrepareForRender is a new shader is being setup. Fixed
that. This overcomes OpenGL errors raised when sending the uniforms.

Change-Id: Idb7363a56a7187a6d5bac99e85f9a59b6de2277f
Merge topic 'lookup_table_cleanup' into next

5b201cf2 Fix errors in vtkUncertaintySurfacePainter.
Fix Catalyst editions.

Added missing (and required) new modules to Catalyst Base.

Change-Id: Idc9e5891f13509f29b29a661f1766bf712f0c731
Merge topic 'lookup_table_cleanup' into next

16f06f7e Fix Catalyst editions.
Update VTK to remove UncertaintyRendering OpenGL errors.

Change-Id: If35d16c3efc05bf49e8f9af55a6b4e49c41bf7a2
Merge topic 'lookup_table_cleanup' into next

79f16f08 Update VTK to remove UncertaintyRendering OpenGL errors.