COMP: Add -Wunused-local-typedefs to Eternia.

Ignore
/TubeTK-Debug/ITK/Modules/Core/Common/include/itkConceptChecking.h:594:59:
warning: typedef ‘ValueType’ locally defined but not used
[-Wunused-local-typedefs].
Merge pull request #34 from thewtex/gcc-4.8-warnings

COMP: Add -Wunused-local-typedefs to Eternia.