Deprecated C++ headers

This issue was created automatically from an original Mantis Issue. Further discussion may take place here.

> VTK: 4.4 > ICC: 8.1 > Header: strstream > From: Common/vtkIOStream.h(32) > > Error Message: > Building object file vtkAbstractMapper.o... > /export/home/hpc026/VTK/Common/vtkIOStream.h(32): catastrophic error: > could not open source file "strstream" > # include <strstream> // Include real ansi strstreams.

VTK has a bunch of compatibility headers to help it work with older compilers. Until now every compiler has supported the old <strstream> header or a variation of it so there was little motivation to upgrade to use the new <sstream> header since old compilers don't provide it. Some of our other projects use <sstream> and have a compatibility implementation to work with compilers that provide only <strstream>.