BUG: Fixed accented character display of series and studies in subject hierarchy

Fixes #3688

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23483 3bd1e089-480b-0410-8dfb-8563597acbee
STYLE: Removed testing code from previous commit

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23484 3bd1e089-480b-0410-8dfb-8563597acbee