change order of writers in io.Multiwriter

io.MultiWriter (i think) thinks dataWrite.Write fails, and so doesn't
continue writing to all other outputs. This just makes it the last one,
should fix #4.

main.go

@@ -484,9 +484,9 @@ func listenForCommands(players *players) {
 					players,
 				}
 				if isSharing {
-					WRITER = io.MultiWriter(SHAREWRITER, DATAWRITER, os.Stdout)
+					WRITER = io.MultiWriter(os.Stdout, SHAREWRITER, DATAWRITER)
 				} else {
-					WRITER = io.MultiWriter(DATAWRITER, os.Stdout)
+					WRITER = io.MultiWriter(os.Stdout, DATAWRITER)
 				}
 				isDataSharing = true
 			}