ENH: New test for itkLabelShapeOpeningImageFilter

The /Modules/Filtering/LabelMap/test/CMakeLists.txt has been modified so
that the existing test itkLabelShapeOpeningImageFilterTest1.cxx is
included, and the itkLabelShapeOpeningImageFilter class is tested. The
baseline image generated when running the test locally is being committed
along with this patch. The test compiles fine under Visual Studio 2010,
and runs successfully in Windows 7 64-bit.

Change-Id: I815cb6f8ddf1859b91b15afb9e579dad61c13f1d
DOC: ImageRandomConstIteratorWithIndex table reference.

The reference / label connection is not picked up when built.

Change-Id: I19be0c572b2c884cafbde41167c9f23205cfc83c
Merge branch 'release'

Change-Id: If84b133d5c312c98f9fb13a406bf2e5049f8c472
Merge topic 'LabelShapeOpeningImageFilterCodeCoverage'

70a29387 ENH: New test for itkLabelShapeOpeningImageFilter