fixed issue with joining as spectator

fixed an issue where if you had closed panel attack while spectating, the server didn't remove you as a spectator, and so you couldn't ever join that room again, even if you closed and reopened panel attack.

mainloop.lua

@@ -115,7 +115,7 @@ do
         {"2P fakevs at burke.ro", main_net_vs_setup, {"burke.ro"}},
 		{"2P fakevs at Jon's server (US-East, beta for spectating and ranking)", main_net_vs_setup, {"18.188.43.50"}},
 		{"2P fakevs at domi1819.xyz (Europe, beta for spectating and ranking)", main_net_vs_setup, {"domi1819.xyz"}},
-		--{"2P fakevs at localhost (development-use only)", main_net_vs_setup, {"localhost"}},
+		{"2P fakevs at localhost (development-use only)", main_net_vs_setup, {"localhost"}},
         {"2P fakevs local game", main_local_vs_setup},
         {"Replay of 1P endless", main_replay_endless},
         {"Replay of 1P puzzle", main_replay_puzzle},

server.lua

@@ -509,6 +509,8 @@ function Connection.close(self)
   end
   if self.room and (self.room.a.name == self.name or self.room.b.name == self.name) then
     self.room:close()
+  elseif self.room then
+    self.room:remove_spectator(self)
   end
   clear_proposals(self.name)
   if self.opponent then
@@ -784,7 +786,7 @@ function Connection.J(self, message)
     if requestedRoom and requestedRoom:state() == CHARACTERSELECT then
 	-- TODO: allow them to join
 	  print("join allowed")
-	 requestedRoom:add_spectator(connections[name_to_idx[message.spectate_request.sender]])
+	 requestedRoom:add_spectator(self)
 
 	elseif requestedRoom and requestedRoom:state() == "playing, not joinable" then
 	-- TODO: deny the join request, maybe queue them to join as soon as the status changes from "playing" to "room"