Fix the code in Parser/ to also compile with C++. This was mostly casts for

malloc/realloc type functions, as well as renaming one variable called 'new'
in tokensizer.c. Still lots more to be done, going to be checking in one
chunk at a time or the patch will be massively huge. Still compiles ok with
gcc.

Parser/parser.c

@@ -75,7 +75,7 @@ PyParser_New(grammar *g, int start)
 	
 	if (!g->g_accel)
 		PyGrammar_AddAccelerators(g);
-	ps = PyMem_MALLOC(sizeof(parser_state));
+	ps = (parser_state *)PyMem_MALLOC(sizeof(parser_state));
 	if (ps == NULL)
 		return NULL;
 	ps->p_grammar = g;