BUG: TestingExtractSliceImageFilterTest v3 direction strategy.

The DirectionCollapseToStrategy is different with v3 compatibility on per
the constructor.

Change-Id: I929f1a64d95958e0c280a3290ef6169dd519714e
STYLE: Remove duplicated TestingExtractSliceImageFilter doxygen.

Change-Id: I3f2b6c296032bb2b21da275e5bc85b5003c600a8
DOC: Improved comments and reorganized code for IsolatedConnected

Added documentation to the AddSeed1() and AddSeed2() methods.
Updated the deprecated SetSeed1() and SetSeed2() method documentation
to point to these instead of to AddSeed(), which does not exist.  Also
reorganized the code to emphasize these Add methods.
Wrapped the deprecated SetSeed1(), SetSeed2(), SetUpperValueLimit(),
and GetUpperValueLimit() methods in
ITK_FUTURE_LEGACY_REMOVE preprocessor directives.
Updated the IsolatedConnected test to wrap calls to SetSeed1(),
SetSeed2(), SetUpperValueLimit(), and GetUpperValueLimit() with
ITK_FUTURE_LEGACY_REMOVE preprocessor directives.
IsolatedConnected example also updated to avoid use of deprecated
methods.

Change-Id: Icf934b3eb9273d4b334a48b268784c32f1c6d806
ENH: New test for itkLogSigmoidTransferFunction

New test for the itk::Statistics::LogSigmoidTransferFunction class.
Compiles fine under VS2010 (64 bit), Windows 7.

Change-Id: I45120122546c3d5f39bfe9a3fa68f03e7264dce1
COMP: Update AnalyzeObjectMapIO replacing deprecated

The Begin() iterators were replaced with GoToBegin() for
future ITKv4 compliance.

Change-Id: I74a86eeaa721b16775b1ab3bc3d2798e778130fd
DOC: Fixed documentation regarding multi-threading

Multithreading was fixed in 2011 in preparation for
using MI for BRAINSTools testing and for inclusion into
Slicer.  It was fixed in patch set f542d0c75848ccb8bf35130a896da2fdb1a10d2c,
but the comment was overlooked.

Change-Id: I7cb2648159a7abfc75f14953c821e499ba26d5f1
Merge topic 'RemoveOutdatedComment'

3991bae5 DOC: Fixed documentation regarding multi-threading
Merge topic 'UpdateAnalyzeObjectIO'

4d3b91ff COMP: Update AnalyzeObjectMapIO replacing deprecated
Merge topic 'LogSigmoidTransferFunctionTestBranch'

4c20fa85 ENH: New test for itkLogSigmoidTransferFunction
Merge topic 'IsolatedConnectedSeedDocumentation'

e142b842 DOC: Improved comments and reorganized code for IsolatedConnected
Merge topic 'testing-extract-doxygen'

5144b613 STYLE: Remove duplicated TestingExtractSliceImageFilter doxygen.
Merge topic 'testing-compatibility'

808c9684 BUG: TestingExtractSliceImageFilterTest v3 direction strategy.
BUG: incorrect loop var increment

Change-Id: Id339d230d6c2962f7bce59d2a074e3d1bc6ab261
Merge topic 'DCMTKFILEReaderBug'

bb092d2a BUG: incorrect loop var increment
ENH: Replace python print with print() function

This is needed for python 3 and is backward compatible with python 2.7 and 2.6.

Some prints were commented out, I just added the parantheses, to be consistent throughout the code.

I did not update:
- gdcm Python files (third party)
- notyetusable Python tests, those need refactoring anyway
- the Python examples, they are being moved to the itk examples repo

Change-Id: If527aacb1c379165c2188dfa8f85c28ed55ed4c9
Merge topic 'Python3Print'

621872a2 ENH: Replace python print with print() function