COMP: Update CTK external project

$ git shortlog 46a1d6605..36fb628b1
Andreas Fetzer (11):
Adding possibility to dynamically change the layout of the dicomTableManager
ctkDicomBrowser uses dynamic table layout now
Children of the QSplitter of the tablemanager are no longer collapsible
Fixed missing update if new data is added
Fixed bug where filter textfield's background remained black
m_dynamic layout is now in pimpl and has read accessor. Some code cleaning
Improved behaviour of dynamic layout: between 800 and 1024px window size use vertical layout. If the window is bigger than 1024 switch to horizontal layout
Renaming method for setting dicom database
Not using const references when declaring a connection
Setting dynamic table layout in ui file
Proper naming of property with const read method

Jean-Christophe Fillion-Robin (3):
Rename macro "ctk_include_once" into "superbuild_include_once"
Ensure 'superbuild_include_once' works independently of the caller scope.
Merge branch '418-support-use-system-option'

Julien Finet (1):
Merge pull request 0000422 from AndreasFetzer/allow-dynamic-table-layout-for-dicombrowser-final

From: Jean-Christophe Fillion-Robin <jchris.fillionr@kitware.com>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@22752 3bd1e089-480b-0410-8dfb-8563597acbee