Add export/import to allow vtkTuple subclasses in other modules.

The python-wrapped vtkVector type wasn't able to link to its
python-wrapped vtkTuple superclass because vtkTuple was in a different
module.  This patch adds import/export declarations to allow module
boundaries to be crossed.

The trick of automatically discovering what template instantiations
are used does not work across module boundaries, however, so the needed
instantiations of the vtkTuple template have been hard-coded for now.

Change-Id: Ibeee7d3edcdfab491ad4c1907498a02f84dc86ed
Bugfix for bottleneck in vtkGraph::RemoveVertexInternal

Originally contributed by Matthias Schneider. This was an oversight
where other calls to BuildEdgeList are guarded by this condition.

Change-Id: I0a43e062c50636b45c5f71821ab01a7d68c72d50
Merge topic 'vtkgraph-vertex-remove-bottleneck' into master

566bef8d Bugfix for bottleneck in vtkGraph::RemoveVertexInternal
Merge topic 'python-import-export' into master

c2bd3fdb Add export/import to allow vtkTuple subclasses in other modules.
COMP: Python tests should use VTK_TEMP_DIR for output

Tests should write their temporary files into VTK_TEMP_DIR. This patch
also adds a new function vtkGetTempDir() to vtk.util.misc.

This patch may solve a nmmber of mysterious test failures on some
builds.

Change-Id: I80a33383a9097a015c9f6ff635c49bcc8aac9f91
COMP: Run SQL tests serial

Intermittent test failures on SQL tests appear on systems that run
tests in parallel. This patch forces the SQL tests to run serial.

Change-Id: Ie6a8b52c30a73d273ca0188857ca0e541cd4cbc6
Merge topic 'SQLTestFailures' into master

e7d5b180 COMP: Run SQL tests serial
Merge topic 'UseTempDirForOutput1' into master

26cf0730 COMP: Python tests should use VTK_TEMP_DIR for output
BUG: TestSetGet crashes

TestSetGet tries to test the singleton vtkTextRenderer. This causes
segfaults on some systems. This patch exempts vtkTextRenderer from the
test.

Change-Id: I751b8016ea1339715a4c588954f7320e17f7deb4
Merge topic 'Valgrind_TestSetGet' into master

13544910 BUG: TestSetGet crashes