DOC: Fix itkSetGetDecoratedInputMacro Doxygen macro.

Extra "number" argument.  Fixes SetFileName expansion for ImageFileReader for
example.

Change-Id: Id82bcf5a04ae04d4d82bd8f362985ee19b2153ad
ENH: pygccxml v1.6.2 (reduced)

This corresponds to commit hash
  cb908d3e9faeff278d2da66149e9db59a2f62d6c
from upstream repository
  https://github.com/gccxml/pygccxml
ENH: Update pygccxml to v1.6.2

Adds python 3 support for pygccxml.

Merge branch 'pygccxml-upstream' into pygccxml-update
(See commit d4624a99ea62221f251e8e77d813289ad441d513)

Change-Id: I7259304fe5e36fa53f04a62ec279caf32612483b
STYLE: Set ITK_USE_SYTEM_ZLIB and ITK_USE_SYTEM_SZIP

instead of ZLIB_USE_EXTERNAL and SZIP_USE_EXTERNAL
The flags were set to ON and OFF instead of 1 and 0 and the description was
extended a little bit.

See ITK-3157

Change-Id: I83f1e1bc68a89d2d2b708da535125b14033141bf
ENH: Add script to update pygccxml from upstream

Change-Id: I6f8d8339e0531e49e5800d2c79423612553cdd08
BUG: Update VTK minimum version (for release)

If you look at the version number for VTK for the 19 april 2011,
the VTK version is set to 5.9.0, so this version number makes no sense.
I updated the version to 5.10.0, which is known to work with VTKGlue.

Bug reported by Norman K Williams on the ITK mailing list.

Change-Id: I55f13f539e9a47682f0ce5dcdb2bdd4b85f2f745
BUG: Fix offset[2] in PointSetToSpatialObjectDemonsRegistrationTest.

Change-Id: I6a821304b389d3594ad8499d11a7c9487db2bce7
STYLE: Fix style in VoronoiDiagram2D.

Change-Id: If2aa30ea4868dc5b2047cc0d4b778435d96a0cfb
COMP: use find_package(VTK COMPONENTS) to specify just needed VTK Components

Change-Id: If139b873783f0b1863bebd8a591872193c184372
BUG: Fix invalid assignment of second VoronoiBoundaryOrigin.

Change-Id: Ided50dc59198e33a30ccc8791c0ecea24774a3b0
BUG: Bump GCCXML to 2014-08-06.

Better support for GCC 4.9.

Change-Id: I2563c0b78f6439ffa87d3914b0e5071ea109a5bc
BUG: Remove unused m_{SplitEpsilon,SigmoidPrimeOffset}.

Change-Id: I6b60de093f7ee28626f30832f9eea707a8408b87
BUG: ImageSources/test/CMakeLists.txt incorrect library var reference

The CreateTestDrivers command referred to ITKSource-Test_LIBRARIES,
when the correct variable name is ITKImageSources-Test_LIBRARIES.
This was never noticed because ImageSources only depends on
header-only modules, so both the correctly-named and
incorrectly-named CMake variable would be empty.

Change-Id: I86ab2998d173d8b196575f7a5f2277444f184b45
Merge topic 'GCCXMLBump'

d66a3c3f BUG: Bump GCCXML to 2014-08-06.
Merge topic 'VTKMinVersion'

1daefcb9 BUG: Update VTK minimum version (for release)
Merge topic 'PointSetToSpatialObjectDemonsReg'

57796a2a BUG: Fix offset[2] in PointSetToSpatialObjectDemonsRegistrationTest.
Merge topic 'PointSetToSpatialObjectDemonsReg'

bd15763a STYLE: Fix style in VoronoiDiagram2D.
Merge topic 'PointSetToSpatialObjectDemonsReg'

fab08b74 BUG: Fix invalid assignment of second VoronoiBoundaryOrigin.
Merge topic 'UseSystem'

f51b3ed1 STYLE: Set ITK_USE_SYTEM_ZLIB and ITK_USE_SYTEM_SZIP
BUG: Remove unused redefinition of NULL

Change-Id: I37238a1fdb52c6d67e944fb18aa8e11dfe8efc70