implement Factorio options max_science_pack and tech_cost

also give warnings about deprecated LttP options
also fix FactorioClient.py getting stuck if send an unknown item id
also fix !missing having an extra newline after each entry
also default to no webui

LttPClient.py

@@ -982,8 +982,8 @@ async def main():
     parser.add_argument('--loglevel', default='info', choices=['debug', 'info', 'warning', 'error', 'critical'])
     parser.add_argument('--founditems', default=False, action='store_true',
                         help='Show items found by other players for themselves.')
-    parser.add_argument('--disable_web_ui', default=False, action='store_true',
-                        help="Turn off emitting a webserver for the webbrowser based user interface.")
+    parser.add_argument('--web_ui', default=False, action='store_true',
+                        help="Emit a webserver for the webbrowser based user interface.")
     args = parser.parse_args()
     logging.basicConfig(format='%(message)s', level=getattr(logging, args.loglevel.upper(), logging.INFO))
     if args.diff_file:
@@ -1002,7 +1002,7 @@ async def main():
         asyncio.create_task(run_game(adjustedromfile if adjusted else romfile))
 
     port = None
-    if not args.disable_web_ui:
+    if args.web_ui:
         # Find an available port on the host system to use for hosting the websocket server
         while True:
             port = randrange(49152, 65535)
@@ -1015,7 +1015,7 @@ async def main():
 
     ctx = Context(args.snes, args.connect, args.password, args.founditems, port)
     input_task = asyncio.create_task(console_loop(ctx), name="Input")
-    if not args.disable_web_ui:
+    if args.web_ui:
         ui_socket = websockets.serve(functools.partial(websocket_server, ctx=ctx),
                                      'localhost', port, ping_timeout=None, ping_interval=None)
         await ui_socket