Fix properties on PlotMatrixView.

Needed to fix widgets and property signatures for properties on the
PlotMatrixView.

Change-Id: I21fb539fd2fad8776c24ee3bbd259fcdbe859049
Backwards compatibility fixes for ColorAttributeType.

We now support complete backwards compatibily for ColorAttributeType and
ColorArrayName in Python. Also fixed logic to backwards compatibility in
Python. ParaView Python package scripts should no longer set the
compatibility to anything. User scripts, however can explicitly request
compatibility to older version.

Change-Id: Ib2b1b925d51586a455c6a52530a55f5a977554ed
Merge topic 'lookup_table_cleanup' into next

72ec4ef2 Backwards compatibility fixes for ColorAttributeType.
19b6654a Fix properties on PlotMatrixView.
Merge topic 'fix_documentation_typo' into next

7641997a Fix typo in documentation (thanks Jean Favre).
Force 4.1 compatibility on Web scripts.

Forcing 4.1 compatibility on Web scripts until we upgrade them to use
new API.

Change-Id: I284fe3dfa31cdfcd4496c600f84e3368e1b13791
Merge topic 'lookup_table_cleanup' into next

daa15489 Force 4.1 compatibility on Web scripts.
Cleanup test to make playback easier/reliable.

Change-Id: I9461b86a98eb651d114c3dfb35bd073cbcfd58b1
Merge topic 'lookup_table_cleanup' into next

396a9a1f Cleanup test to make playback easier/reliable.
Fix missing "import paraview".

Change-Id: Iabae8c84f9d68c54c7132711125fd0c607c410b9
Merge topic 'lookup_table_cleanup' into next

a366c8bf Fix missing "import paraview".