Disconnection causes program to hang

The server that hosts my bot that uses your library often disconnects. This causes an error above 1001. Right now the bot doesn't reconnect or exit the program. https://github.com/gizmo385/discord.clj/blob/master/src/discord/gateway.clj#L258 which causes my bot to hang and then i have to log into my server and restart it manually.

WARN [discord.gateway:259] - Closing Gateway websocket, not reconnecting (1006).
Exception in thread "async-dispatch-7" org.eclipse.jetty.websocket.api.WebSocketException: RemoteEndpoint unavailable, current state [CLOSED], expecting [OPEN or CONNECTED]
    at org.eclipse.jetty.websocket.common.WebSocketSession.getRemote(WebSocketSession.java:299)
    at gniazdo.core$connect_with_client$reify__11265.send_msg(core.clj:138)
    at discord.gateway.DiscordGateway.send_message(gateway.clj:62)
    at discord.gateway$send_heartbeat.invokeStatic(gateway.clj:204)
    at discord.gateway$send_heartbeat.invoke(gateway.clj:202)
    at discord.gateway$connect_to_gateway$fn__15913$state_machine__5591__auto____15932$fn__15934.invoke(gateway.clj:292)
    at discord.gateway$connect_to_gateway$fn__15913$state_machine__5591__auto____15932.invoke(gateway.clj:292)
    at clojure.core.async.impl.ioc_macros$run_state_machine.invokeStatic(ioc_macros.clj:973)
    at clojure.core.async.impl.ioc_macros$run_state_machine.invoke(ioc_macros.clj:972)
    at clojure.core.async.impl.ioc_macros$run_state_machine_wrapped.invokeStatic(ioc_macros.clj:977)
    at clojure.core.async.impl.ioc_macros$run_state_machine_wrapped.invoke(ioc_macros.clj:975)
    at clojure.core.async$ioc_alts_BANG_$fn__5794.invoke(async.clj:384)
    at clojure.core.async$do_alts$fn__5740$fn__5743.invoke(async.clj:253)
    at clojure.core.async.impl.channels.ManyToManyChannel$fn__509.invoke(channels.clj:265)
    at clojure.lang.AFn.run(AFn.java:22)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
^C

I made the changes

(if (> 1001 status)
                      (do
                        (timbre/warnf "Socket closed for unexpected reason (%d): %s" status reason)
                        (timbre/warnf "Attempting to reconnect to websocket...")
                        (reconnect-gateway gateway))
                      (do (timbre/warnf "Closing Gateway websocket, not reconnecting (%d)." status)
                          (System/exit 1)))

which causes the program to exit if an abnormal error occurs.

WARN [discord.gateway:259] - Closing Gateway websocket, not reconnecting (1006).
Exception in thread "async-dispatch-6" org.eclipse.jetty.websocket.api.WebSocketException: RemoteEndpoint unavailable, current state [CLOSED], expecting [OPEN or CONNECTED]
    at org.eclipse.jetty.websocket.common.WebSocketSession.getRemote(WebSocketSession.java:299)
    at gniazdo.core$connect_with_client$reify__11265.send_msg(core.clj:138)
    at discord.gateway.DiscordGateway.send_message(gateway.clj:62)
    at discord.gateway$send_heartbeat.invokeStatic(gateway.clj:204)
    at discord.gateway$send_heartbeat.invoke(gateway.clj:202)
    at discord.gateway$connect_to_gateway$fn__15913$state_machine__5591__auto____15932$fn__15934.invoke(gateway.clj:293)
    at discord.gateway$connect_to_gateway$fn__15913$state_machine__5591__auto____15932.invoke(gateway.clj:293)
    at clojure.core.async.impl.ioc_macros$run_state_machine.invokeStatic(ioc_macros.clj:973)
    at clojure.core.async.impl.ioc_macros$run_state_machine.invoke(ioc_macros.clj:972)
    at clojure.core.async.impl.ioc_macros$run_state_machine_wrapped.invokeStatic(ioc_macros.clj:977)
    at clojure.core.async.impl.ioc_macros$run_state_machine_wrapped.invoke(ioc_macros.clj:975)
    at clojure.core.async$ioc_alts_BANG_$fn__5794.invoke(async.clj:384)
    at clojure.core.async$do_alts$fn__5740$fn__5743.invoke(async.clj:253)
    at clojure.core.async.impl.channels.ManyToManyChannel$fn__509.invoke(channels.clj:265)
    at clojure.lang.AFn.run(AFn.java:22)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
2020-04-03 22:42:58.216:WARN:oejut.QueuedThreadPool:Thread-2: WebSocketClient@282234594{STOPPING,8<=8<=200,i=0,q=1} Couldn't stop Thread[WebSocketClient@282234594-13,5,main]

is it all right if i make a PR?

gizmo385 / discord.clj

Disconnection causes program to hang #18