Fix to use newer libjpeg API.

Newer API uses jMemSrc instead of jpeg_mem_src. We check if the version
is  >=80 or or  MEM_SRCDST_SUPPORTED is defined and use the newer API
where appropriate.

Change-Id: I89d1129c656539a3e748fbbebae5130aece6e4c1
BUG 13875: Add a separate python module to resolve dependencies.

The dependency of Rendering/Matplotlib on Wrapping/Python was causing
the latter module to be configured too early.  Wrapping/Python must
be configured after all wrapped modules or it will not be able to capture
all of the wrapped modules properly.

The solution is to create a new Python vtk-module that both Wrapping/Python
and Rendering/Matplotlib can depend on.

Change-Id: I8348fd80147126866dec91488cb0771a7f412636
Merge topic '0013870-fix-jpeg-mem-src-conflict' into master

1d79220a Fix to use newer libjpeg API.
Merge topic 'python-module' into master

146e2f78 BUG 13875: Add a separate python module to resolve dependencies.
COMP: TestGL2PSMathTextActor3D regression

TestGL2PSMathTextActor3D is failing on all platforms. Seems to be a
zbuffer problem. Clipping planes should be reset after manual movement
of camera.

Change-Id: I3a7a74bf55c701c92535946210bcf14a98e9cf91
Merge topic 'Failing_TestGL2PSMathTextActor3D' into master

4ba6068b COMP: TestGL2PSMathTextActor3D regression