Unescape spaces in MPL paths.

Python gets confused otherwise.

Change-Id: Iebe588e121f441061b6f9329ca511adc803cfcec
Merge topic '13789-FixMacMplPythonPath' into master

dcba6153 Unescape spaces in MPL paths.
BUG 11810: VTK failed to compile with Tcl 8.6 due to errorLine.

The errorLine member of the Tcl interp struct is private in Tcl 8.6.

Change-Id: I8695e4a9853e87e613cdb9b8d0cb5d9b9437531b
Added an Origin variable to HTG sources, to generalize further

Change-Id: I9fd0081453d1ca57cdef4b7597f05d602e78fd0d
Added a test for a bi-material case

Change-Id: Id6dcfb3b52868ceeb20087d1d7a46913ad2bebe4
White space clean up

Change-Id: I5b0fc413c2bbfb02cd80ef3da108db9b6682364d
Merge topic '11810-tcl-geterror' into master

792a0602 BUG 11810: VTK failed to compile with Tcl 8.6 due to errorLine.
Merge topic 'add_bi_material_case_to_HTG_tests' into master

50166da6 White space clean up
4df8f236 Added a test for a bi-material case
897663a4 Added an Origin variable to HTG sources, to generalize further
Fixed mismatched delete call.

"delete" was used, instead of "delete []". This fixes that issue.

Change-Id: I42ecc2bfde615e3f0db354b92cc8a5f3fd3b4832
Fixing arrays being deleted using free() instead of delete.

vtkDistributedDataFilter allocated C arrays using "new[]" and then passed those on
to vtkDataArrayTemplate subclasses. vtkDataArrayTemplate, however, ended up
deleting those arrays using "free", since that's the default. Ensuring
vtkDistributedDataFilter passed in appropriate flags to
vtkDataArrayTemplate::SetArray() so that vtkDataArrayTemplate releases the
memory using the correct "delete[]" operator.

Change-Id: I7c133fb32193603e482eb73cdc7697b1e66aa8d4
Merge topic 'fix_memory_issues' into master

06287385 Fixing arrays being deleted using free() instead of delete.
a41887a6 Fixed mismatched delete call.
BUG: Fix issues when num-pts in > VTK_CELL_SIZE.

When vtkBoxClipDataSet was applied to dataset with cells have large number of
points per cell, e.g. output of a streamline filter, it would end up corrupting
memory. Changing the code to ensure temporary arrays created to collect the
points in a cell are large enogh, no matter the number of points in the cell.

Change-Id: I033ae945bdcb531e3dbbc75456c56f5f27c38226
Merge topic 'fix_memory_issues' into master

e93d6b04 BUG: Fix issues when num-pts in > VTK_CELL_SIZE.
Merge topic '13788-FixSignalHandlers' into pv-master

4db9668 Merge remote-tracking branch 'origin/master' into HEAD
7ca2638 Disable python signal handlers in matplotlib module.
aaee29e Merge remote-tracking branch 'pvvtk/pv-master' into HEAD
Merge remote-tracking branch 'pvvtk/pv-master' into HEAD

* pvvtk/pv-master:

Change-Id: I943babf081d9ecef0fda6d208995c9ea70c1a371