Update code/FBXConverter.cpp

Fixing VC10 build.

code/FBXConverter.cpp

@@ -45,6 +45,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
 
+#include <iterator>
 #include <boost/tuple/tuple.hpp>
 
 #include "FBXParser.h"