-Use HashTable instead of std::map for mapping SocketAddresses to Connections and ConnectionIds to Connections for NetInterface.

git-svn-id: http://odamex.net/svn/root/branches/net3-base@4177 b0bcef46-2027-0410-bd56-ab726e9a1d04
-Print console message upon successful connection negotiation.

git-svn-id: http://odamex.net/svn/root/branches/net3-base@4178 b0bcef46-2027-0410-bd56-ab726e9a1d04