#4 set action for standard-messages

[muffinimal]

I only use BNetMessenger for playing Diablo2. Works
like a charm, jay!

I really wouldn't know how other b.net games do this,
but with Diablo it works like this. When someone goes
online and when they have my bot in their friendlist
(so that they have a shortcut to talk to me), I get the
following message:

"Your friend username has entered Battle.net."

When he goes offline, it says:

"Your friend bockyiv has exited Battle.net."

It would be cool if I could tell the bot to ignore the
first message, for instance. And maybe fire up my
program "UnthinkableMayhem.exe" if the latter one
appears. Not sure. Hmm... Maybe a sound then...

There are a few more message that appear when someone
does an action. The following message appears when
someone enters a game.

"Your friend username entered a Diablo II Lord of
Destruction game called gamename"

I guess there might be more... Custom actions for those
messages would rock!

Thanks for the great plugin,
Martin