Move DataAnalysis toolbar.

For every category of toolbar that is added, ToolbarBreak is
applied. This causes a new toolbar to show up below the previous and
ends up leaving blank unused space in the toolbar region.

We want all toolbars loaded after the Common toolbar (including
DataAnalysis) to come up next to it and not below it. This means that we
apply a ToolbarBreak only before the Common toolbar and not afterwards.

Change-Id: I26c6e2b5faae9aeb6627610f71cb0ab0cd88f097
Merge topic '0013923-Move-DataAnalysis-Toolbar' into next

3148702 Move DataAnalysis toolbar.
Adding support to ahndle non-default orientations.

Fixed a bug in the reading and writing of some of the Analyze files in
non-default orientations.

Change-Id: If783cfb9c4f07f8e1c44a0a725055f3f223e2587
Fixing tests and layout issues in the WriterDialog.

Change-Id: I2e9e1c589fd09ab052e6aa593e319149a8a605ae
Merge topic '13984_64bit_headers_for_xml_writers' into next

2ad565f Fixing tests and layout issues in the WriterDialog.
a6adc5e Adding support to ahndle non-default orientations.
Fixes CoProcessingTestPythonScript test in static builds.

vtkCPPythonScriptPipeline was not uninitializing Python interpretor at the
right time. That was resulting it memory corruption. Tweaked the logic in
vtkCPPythonScriptPipeline to release Python interpretor when the last
vtkCPPythonScriptPipeline instace is deleted.

Change-Id: I912bf7363f5d8315024cf7b0063e88df530a0d0d
Merge topic 'clean_coprocessing_python' into next

aaa5372 Fixes CoProcessingTestPythonScript test in static builds.