STYLE: add comments to SampleData class

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23646 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: add a testing clickAndDrag utility to the scripted module

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23647 3bd1e089-480b-0410-8dfb-8563597acbee
BUG: fixes for 3808 fiducial picking issue

See http://na-mic.org/Bug/view.php?id=3808

Note that fixing this requires the corresponding fixes
to VTKv6 and LandmarkRegistration

https://github.com/pieper/LandmarkRegistration/commit/d9393f515b4798d9904fdd0383d959b91fc1edfb

https://github.com/pieper/VTK/commit/f3d6cc2503375724e60dd73d9a93ba9c764be26e

COMP: fix repository url and error macro usage

From: Steve Pieper <pieper@bwh.harvard.edu>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23648 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: fixed issue #2771 kill preivious storescp executables

The new logic will get the os process list and if (other) storescps are on
the list, it would warn the user and through a dialog asks for killing
these executables. The start listener button is checkable now and it is only
checked when the listner is running.

From: Alireza Mehrtash <mehrtash@bwh.harvard.edu>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23649 3bd1e089-480b-0410-8dfb-8563597acbee
COMP: Update VTK to reference updated Slicer/VTK fork. Issue #3808

Steve changes related to issue #3808 have been integrated into the
Slicer/VTK fork and this commit updates the external project accordingly.

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23650 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: Update to Testing::ComparisionImageFilter

Update deprecated usage of ComparisonImageFilter to
TestingComparisonImageFilter.

Migration:
http://itk.org/migrationv4/index.php?action=artikel&cat=3&id=113&artlang=en&highlight=ComparisonImageFilter

From: Bradley Lowekamp <blowekamp@mail.nih.gov>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23651 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: Update GetCoefficientImage to GetCoeffiecientImages

Function renamed, and only available with ITKv3 compatibility.

From: Bradley Lowekamp <blowekamp@mail.nih.gov>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23652 3bd1e089-480b-0410-8dfb-8563597acbee