Fixed m_connectionLookup was not cleared on shutdown
Fixed m_connectionLookup was not cleared on shutdown

lidgren/lidgren-network-gen3,SacWebDeveloper/lidgren-network-gen3,forestrf/lidgren-network-gen3,dragutux/lidgren-network-gen3,PowerOfCode/lidgren-network-gen3,jbruening/lidgren-network-gen3,RainsSoft/lidgren-network-gen3