new class node_holder

this will hold the nodes for the client side querys like get_peers
fixed up problems with node classes.

DHT_node class working fine now returns strings of port and ip address.
node class still needs to be converted, will work on when i fix my
querys.
debugged and cleaned up nodeExtract.php

very small chnages
removed debugging output in bencoded.php
major work on dht.class.php

changed to include_once,
changed get_peers to get_peers_blocking for future nonblocking socket
work.
took out some comments + added comments
manual timeout checking for socket added, bc couldnt get the socket
metadata.

added new functions:
get_peers_non_blocking for future nonblocking sockets
get_peers_for_info_hash_blocking  for recursivley getting peers.
added tests for new dht.class functionality