Removed direct STL dependency from the Assimp interface, should hopefully avoid problems with binary incompatible STLs. Some API changes, e.g. in the logger.

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@321 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

include/IOStream.h

@@ -62,7 +62,7 @@ namespace Assimp	{
  *  to the Importer. If you implement this interface, be sure to also provide an
  *  implementation for IOSystem that creates instances of your custom IO class.
 */
-class ASSIMP_API IOStream 
+class ASSIMP_API IOStream : public Intern::AllocateFromAssimpHeap
 {
 protected:
 	/** Constructor protected, use IOSystem::Open() to create an instance. */