MetaIO: Always use std:: streams for VTK
MetaIO: Always use std:: streams for VTK

VTK no longer supports compilers that do not provide both STL and
streams in the std:: namespace.  Stop including vtkConfigure.h
and hard-code METAIO_STL and METAIO_STREAM.

SVN-Revision: 3589
tjcorona/MetaIO,tjcorona/MetaIO,opoplawski/MetaIO,opoplawski/MetaIO