Add notifier in editor when a new player connects

[GoogleCodeExporter]

Add some sort of subtle (perhaps disablable) notification when a player 
connects to the editor so people editing know that a potential game situation 
may be brewing.

Original issue reported on code.google.com by watusim...@bitfighter.org on 23 Feb 2014 at 5:05

[GoogleCodeExporter]

Just to be clear: The alert should come when a player connects to the *game - 
whether it be the editor, the lobby, or a server.

Original comment by Jomskylark on 23 Feb 2014 at 7:07

[GoogleCodeExporter]

Sorry, yes, I was tired and in a hurry when I typed that up.  The notification 
would happen when a player connected to the master server, in whatever capacity.

Original comment by watusim...@bitfighter.org on 24 Feb 2014 at 11:15

[GoogleCodeExporter]

Will probably require some new m2c methods:
1) m2cSendListOfConnectedPlayers() which gets fired when player first connects 
to master;
2) m2cPlayerConnected() to send names of new players as they join; and
3) m2cPlayerDisconnected() to send name of players as they quit

For this case, we would probably show an alert or something when (2) was 
triggered.  But it seems to make sense to add the rest while we're at it

Original comment by watusim...@bitfighter.org on 2 Mar 2014 at 9:29

[GoogleCodeExporter]

Issue 410 has been merged into this issue.

Original comment by buckyballreaction on 9 Mar 2014 at 1:02