Added Python support for making new information keys.

It was not possible to create new keys from Python. Fixed.

Change-Id: I54004c89e221ce998f2400950f393c79a245950e
12098: Mangle void_p like other swig pointers.

When vtk-python returns a "void *", it passes it as a swig-style
pointer string _0acd876f_void_p which was valid for swig 1.0, but
modern swig requires _0acd876f_p_void instead.

Change-Id: Ic58e66581b7bc56c04e91ec0060b63a8c8e4e445
Merge topic 'improve-dax-contour' into pv-master

93c30ce4 Support passing point field data in Dax threshold filter.
95a86c59 Support Dax marching tetrahedra
423e2485 Add compute scalars to Dax contour filter.
93a1db37 Change vtkDaxMarchingCubes to vtkDaxContour
Merge topic 'pv-plot-bar-lut' into pv-master

bf8a001b FIX: Set the hue range for the default lookup table.
6518f801 Merge topic 'plot-bar-lut' into master
45e2449a Merge topic 'iphone_fix' into master
110e0c9e Merge topic 'opengl_32' into master
42d799da really turn shared libs off
47ac0d5c some minor cleanups
b7a0eefc working clean prepping for opengl instancing
4abe5c80 Merge topic 'cleanup-pgi-warnings' into master
c9fefb7f BUG: Replace a few previously removed exit conditions
f2cf6447 Merge topic 'cleanup-pgi-warnings' into master
2ef1a2c8 COMP: Remove unreachable break; statements following returns
71ef2ea6 COMP: Suppress warnings on PGI with commonly used patterns
84d5e530 Merge topic 'fix-jsoncpp-on-vs7' into master
ca073466 in progress
a30d5065 Merge topic 'fix_scalar_material_mode_test' into master
a765c1ad Update TestScalarMaterialMode test image size.
...
Merge remote-tracking branch 'pvvtk/pv-master' into HEAD

* pvvtk/pv-master:

Change-Id: Ia1f46ce392b5a8e0762a62dcc6c799508820495e
Merge topic 'wrapper-support-for-keys' into master

eb42bb7c Added Python support for making new information keys.
vtkVRMLImporter: if non-NULL, delete CurrentTransform in destructor

In normal usage, it will be deleted at ImportEnd time, but in cases
where ImportEnd is never called, it needs to be deleted in the
destructor, too, since it's unconditionally created with New in the
constructor.

Change-Id: I6747d7d8cf641cf3a7fe9fe03fae0716a49fe4a7
Merge topic 'vh1624-dashboard-follow-up' into master

8450ddd1 vtkVRMLImporter: if non-NULL, delete CurrentTransform in destructor
Merge topic '12098_swig_p_void' into master

e12eb1f4 12098: Mangle void_p like other swig pointers.