updated parser a little, still figuring out why the server process exits early

git-svn-id: svn://anubis/fart/trunk@231 7f9b0f55-74a9-4bce-be96-3c2cd072584d

distrib/distrib.cc

@@ -117,7 +117,7 @@ void connection_thread(distrib::connection_thread_arg_t * arg)
 
     bool done = false;
     /* loop listening for messages from the client */
-    for (;;)
+    while (!done)
     {
         int msg_type;
         int nread = read(client_socket, &msg_type, sizeof(msg_type));

parser/parser.yy

@@ -347,14 +347,6 @@ shape: plane { $$ = $1; }
      | subtract { $$ = $1; }
      ;
 
-shape_items: /* empty */
-           | shape_item shape_items {
-                $$ = new ItemsNode();
-                $$->addChild($1);
-                $$->addChildren($2);
-            }
-           ;
-
 shape_item: material { $$ = $1; }
           | material_ref { $$ = $1; }
           | transform { $$ = $1; }