BUG: Update CTKAppLauncher to avoid startup warning reported on Window >= 7

This commit updates the version of the launcher windows binaries to a new
package built against Qt4.8.6 instead of Qt 4.7.4. It will avoid to get
the startup time error message like the one report below:

Untested Windows version 6.3 detected!

git-svn-id: http://svn.slicer.org/Slicer4/trunk@24838 3bd1e089-480b-0410-8dfb-8563597acbee