#78 visual alert for server join

[paroov]

When I start the server and wait for someone to join i
must frequently check if anyone came. That's really
annoying.
If I use sounds - there is no problem, cause as soon as
anyone joins he/she will do smth causing some in-game
sounds (loads & shuffles, says smth).
The problem appears if i do not use game sounds - there
is no mark of ppl joining the server.

solution:
MTGPlay blinks on the taskbar when someone joins the
server
or
MTGPlay gets system focus when someone joins