Refresh Watch Battle when clicking Watch Battle

If Watch Battle is open, trying to open it again will refresh it
in addition to focusing it. Previously, it would only refresh if it's
been over 60 seconds since the previous refresh.

js/client-rooms.js

@@ -157,6 +157,10 @@
 			this.$('button[name=refresh]').focus();
 			this.$el.scrollTop(prevPos);
 		},
+		rejoin: function () {
+			app.send('/cmd roomlist');
+			this.lastUpdate = new Date().getTime();
+		},
 		update: function (data) {
 			if (!data && !this.data) {
 				if (app.isDisconnected) {

js/client.js

@@ -1169,6 +1169,7 @@
 		joinRoom: function (id, type, nojoin) {
 			if (this.rooms[id]) {
 				this.focusRoom(id);
+				if (this.rooms[id].rejoin) this.rooms[id].rejoin();
 				return this.rooms[id];
 			}
 			if (id.substr(0, 11) === 'battle-gen5' && !Tools.loadedSpriteData['bw']) Tools.loadSpriteData('bw');