Packet combining is now supported to save on bandwidth; memory usage has been optimized for packet receiving; fixed a bug where sockets were not being closed correctly on the server and client
- networking::Packet::reset() added; networking::send_file() removed; networking::send_file_checksums() removed; networking::request_file_checksums() removed; networking::request_file() removed; constants::FileChunkFlag removed; constants::MAXIMUM_FILE_CHUNK_SIZE removed; system::FileChecksum removed; networking::PacketManager::on_file_checksums() removed for the client; networking::PacketManager::on_file_chunk() removed for the client; constants::PACKET_REQUEST_FILE removed; constants::PACKET_REQUEST_FILE_CHECKSUMS removed; constants::PACKET_FILE_CHUNK removed; constants::PACKET_FILE_CHECKSUMS removed; constants::NPCFlag renamed to constants::Flag; constants::FLAG_NPC_* renamed to constants::FLAG_*; networking::PacketManager::on_request_file() removed for the server; networking::PacketManager::on_request_file_checksums() removed for the server