Merge topic '0014874_fix_scalar_opacity_unit_distance'

1d1f2813 BUG #14874. Bring back "Scalar Opacity Unit Distance".
Merge topic '14834_fix_representation_update'

94fdffe4 BUG #14834: Fix representation update logic.
Merge topic 'dashboard-warnings-20140721'

aee534c3 vtkMaterialInterfaceUtilities: remove unused function
Merge topic 'refactor_python_tracing_2'

29ca27d4 Attempting to fix Windows Pyhton 2.6 issue.
7fe1155c Expose widget visibility state from pqProxyWidgetDialog.
fa87219f Sort views saved in state by name.
5a3a1c01 Fixed warnings with Python support was disabled.
f3094baf Bring in vtkqttesting fix for EXPORT macro.
cc3dcb7e Revert "Use Int property for ScalarRangeInitialized."
4bbd36fe Improving test playback reliability with pqLineEdit.
5f3413f8 Fix QuadView test scripts.
b47e6d08 Fixed DisconnectAndSave test.
6e2bca87 Fix trace/state when coloring with components.
f8507718 Use Int property for ScalarRangeInitialized.
3fe31024 Fix SavePythonState playback.
f19d6eb6 Add documentation to vtkSMTrace.
31a4990b Fix header test.
a648f465 Fix build issues when Python is disabled.
3a319e97 Cleanup smtrace API and implementation.
...
Merge master into next

* commit 'aa525d5d662ea6c7036e47a07e4c8a146a773e5f':

Change-Id: Iefffe66ae19bfc24d5b3eb6dc0e327b01138fbdb