COMP: Update EMSegment project to fix VTKv6 build error.

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r17058 | jcfr | 2014-06-18 09:47:30 -0400 (Wed, 18 Jun 2014) | 9 lines

COMP: Fix compilation against VTKv6.

This commits fixes build error introduced by r17053.

Few tests are still failing due to memory leaks and will
be fixed at a later time:

• EMSegCL_Task_MRIHumanBrain_BRAINS_small
• EMSegCL_Task_MRIHumanBrainFullParcellation_BRAINS_small
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git-svn-id: http://svn.slicer.org/Slicer4/trunk@23341 3bd1e089-480b-0410-8dfb-8563597acbee