Style cleanup.

* Clean-up floating ternary operator.
* Line length.
* Remove empty space at bottom of style config dialog.
* Remove outdated sample XML config.

Change-Id: Id6911abdee075915f644c71bccf4a4668437bd62
Add ability to export/import VR plugin configuration from file.

This allows a minimial pvsm-style file to be written that contains
the VR plugin state.

The "proxyName" attribute has been added to the <Style ...> tags
that can be used to lookup a proxy by name, since the pvvr file
won't contain any information to map the proxy id into a usable
object.

Change-Id: I08891cd9664f70bfad5b32dd1b00fa451158c837
Cleanup vtkPVPythonCatalyst build issues.

After changes to VTKConfig.cmake, cleaning up vtkPVPythonCatalyst module to be
added explicitly at the end of the vtkModuleTop.cmake.

Change-Id: I517e58d1837637083da32c5c6ce6f907134995d2
Update VTK:

Change-Id: I8ef0cacfcb783ec68df810bf5f4876442f3b66c5
Merge topic 'catalyst_2.0' into next

8a84ba0 Update VTK:
38e5604 Cleanup vtkPVPythonCatalyst build issues.
BUG #13938: Add blot color table to ParaView.

Change-Id: I4c07fc7ad8e3cb3b6924379c8572b99b4e385711
Merge topic '13938_blot_color_table' into next

fddcc8c BUG #13938: Add blot color table to ParaView.
Merge topic '13939-vr-cache-state' into next

60662e3 Add ability to export/import VR plugin configuration from file.
962c16d Style cleanup.
Fixed test after change to presets.

Change-Id: Ia4cdc61af4583ae5ea74bcba4bb8c42fc0bde6c5
Merge topic '13938_blot_color_table' into next

d70ec15 Fixed test after change to presets.
Fix conversion warning in pqMultiBlockInspectorPanel

Change-Id: Idf8e62d60f741dfb5648f656a88969ec1728b84b
Merge topic 'composite-data-display-attributes' into next

8a652cb Fix conversion warning in pqMultiBlockInspectorPanel