ENH: Remove redundant vtkImageAccumulateDiscrete already provided by VTK

Using Slicer implementation of the ImageAccumulate filter is equivalent
to the VTK implementation after setting ComponentExtent and ComponentOrigin
appropriately to account for signed 16-bit images.

Output of the filter have been verified for both MRHead and ChestCT
sample data.

Associated discussion: http://slicer-devel.65872.n3.nabble.com/Slicer-vtkImageAccumulateDiscrete-Should-we-just-use-the-class-provided-by-VTK-tp4030447p4030451.html

See #3485

git-svn-id: http://svn.slicer.org/Slicer4/trunk@22768 3bd1e089-480b-0410-8dfb-8563597acbee
COMP: Fix VTK Maverick MacOSX 10.9 compile error. Fixes #3521

$ git shortlog adc1327551527dfbcc953ce73c5155d18edf7649..f387593148a8bc49cf46c1e27537674d5b779f49
Dave DeMarle (5):
      Merge topic 'release-5.10-windowRect-size' into release-5.10
      Merge topic 'tcl86-compatibility-rel5.10' into release-5.10
      Merge topic 'dont-define-inline' into release-5.10
      Merge branch 'libcxx-error-rel5.10' into integration
      Merge branch 'llvm-libc++-fixes-rel5.10' into integration

David Cole (1):
      Rendering: Use AdjustWindowRect to ensure pixel perfect client size

Goodwin Lawlor (6):
      Backport using Tcl_GetErrorLine with Tcl8.6
      Let macro find TclTk version 8.6
      Update the TclTk internal files for 8.6
      Backport using Tcl_GetErrorLine with Tcl8.6
      Let macro find TclTk version 8.6
      Update the TclTk internal files for 8.6

Jean-Christophe Fillion-Robin (1):
      Merge branch 'osx-10.6.fixes' into slicer-v5.10.1

Sean McBride (5):
      Conditionalize insane "#define inline" in libtiff
      added missing #include, fixing compiler error with llvm's libc++
      Fixed compile error with llvm libcxx
      COMP: fixed compilation error using llvm's libc++
      COMP: fixed llvm libc++ build error by removing invalid 'operator<<'


Co-authored-by: Junichi Tokuda <tokuda@bwh.harvard.edu>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@22769 3bd1e089-480b-0410-8dfb-8563597acbee