Fixed build error regarding zutil.c with vc9.
Updated VC9 project files (again ...)
Moved version getters to aiVersion.h.
Deleted redundant fast_atof.h from irrXML.
Added vc9 config for cppunit
Fixed a missing include when building against stlport
git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@307 67173fc5-114c-0410-ac8e-9d2fd5bffc1f