Merge topic '13575_PV_PLUGIN_DEBUG'

8d4ed01b If no user settings file is found, create a user settings collection
4ccb9ea3 Added some more debugging macro statements
ebd7c0e3 Try to load site settings files and use return value in search logic
c7f463ea Added PV_SETTINGS_DEBUG environment variable
ba08af44 Removed bool return value from LoadSettings()
Merge topic '14771_fix_global_annotation_filter'

e60817ac BUG #14771: Fix vtkAnnotateGlobalDataFilter.
Merge topic '14885_python_view_crash'

85602edf Added removal of DOS line-endings in Python code
b0b48e84 Ensured that Python interpreter is initialized
Merge topic 'fix_apply_pqProxyWidgetDialog'

374911f3 Changed signal/slot connections to avoid override of accept() method
Merge topic 'fix_get_proxies'

645ac1ea != was being used instead of == in conditional
Merge topic 'fix-int64_t'

ebfe016d Use fix-int64_t change from VisItBridge
Merge topic 'remove_duplicate_tiff_readers'

f6dc4055 Fix segfault seen in BUG #9808.
e1b8c5d3 Fix vtkSMTrace segfault when char* is NULL.
f0999171 Update VTK to bring in opacity fix.
89d073e3 Remove duplicate tiff readers.
Merge topic 'remove_matplotlib_utilities'

777e72b5 Removed vtkMatplotlibUtilities class
Merge master into next

* commit 'aa525d5d662ea6c7036e47a07e4c8a146a773e5f':

Change-Id: Ie12965cb3da0637648176463e8b941e640d240a1