implement SocketServer (google code Issue 11)

[zwetan]

https://code.google.com/p/redtamarin/issues/detail?id=11

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on the same model as flash.net.Socket
provide a SocketServer and be able to listen
for connections

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[zwetan]

more in details implement flash.net.ServerSocket
see ServerSocket

[zwetan]

almost trivial to do with the POSIX API
in fact what we need first is a way to handle events
which technically we already have tested and work well (see goAsync and EventLoop)

but what about the case where you want to use such class
and can't or won't use goAsync() ?

[zwetan]

closed see meta issue #78 flash.net package