[fixed]svn-2478: IRC fails (special chars) AllowGroupedUnitCommands out of synch

[titi]

1) if you use "unusual" chars like braces you the irc connect fails. I vote to limit player names to the things we had before! Not need for the full utf8 support for the player name!

2) Games still get out of sync ( quite quickly in the one game I played now).

Update: with AllowGroupedUnitCommands=false all is fine!!!
No out of sync!

[tomreyn]

The issue with non standard english alpha numerical characters in player names getting in the way should now be fixed, thanks to titi.
Games still get out of synch with AllowGroupedUnitCommands=true, though, but this is no longer a default configuration.