COMP: set_tests_properties for missing tests

If VTK_DATA_ROOT is not found, set_tests_properties for some tests
must be blocked.

Change-Id: I8632a1bb30867a7765bf49158ce222d6c2b92eb4
BUG: No data for TestFlashReader

TestFlashReader requires input called: smooth.flash.

According to Yuanxin Liu:
This data set (smooth.flash) is big (1.7G), which is probably why no
one has tried to commit it to VTKData. Unfortunately, as far as I
know, it is the only flash data set that is passed around among the
developers here.  If anyone has a small .flash data set that is good
for testing.  Please post it !

Until a smaller dataset is fouond, remove this test.

Change-Id: I05de065256215f31a7e982ccd7737488ece84ca0
Fix vtkWrapPython compile warnings about format strings.

Change-Id: I2288b717d5138db44aa3564c20c3f27121b1bc2b
Merge topic 'python-import-export' into master

73970c66 Fix vtkWrapPython compile warnings about format strings.
Merge topic 'TestsPropertie' into master

ac9d1938 COMP: set_tests_properties for missing tests
Merge topic 'RemoveTestFlashReader' into master

f52c7cb9 BUG: No data for TestFlashReader
Turn off multisamples so antialiasing doesn't cause test failures.

TestSplitViewportStereoHorizontal is failing on several platforms.

Some linux platforms failed because their graphics cards don't do
antialiasing.  This commit turns of antialiasing on ALL platforms
provides a new non-antialiased baseline, and increases the error
threshold.

All windows machines failed because SetStereoRender was called
before the StereoType was set.  This commit should fix that, because
it calls SetStereoType before SetStereoRender.

All OS X machines still fail because the ViewAngle is, for some
unknown reason, not interpreted properly for this test on that
platform.

Change-Id: Ic159af6f4350fcaa0b3cea7f645d4062030f00ee
Merge topic 'splitviewport-stereo-multisample' into master

047da12d Turn off multisamples so antialiasing doesn't cause test failures.