rework Network send() code to use NetworkTarget/Node/Group::send classes, add a NetworkMessage class for sending NetworkObject messages, and fix a bug whereby the server's client TCP sockets weren't nonblocking.... I wonder how this has worked before?\!

#ifndef WEAPONS_HH
#define WEAPONS_HH

#include "Weapon.hh"
#include <vector>

/**
 * Return a collection of simple weapons
 */
std::vector<Weapon*> buildWeaponsList (void);

#endif