[fix] Flash SecurityErrorEvent
[fix] Flash SecurityErrorEvent

* fix a case where if you call TcpFlashClient::Connect() twice (by
making an auto reconnection for exemple) the SecurityErrorEvent was not
correctly listen on the second call. add

*fix loseConnection call on Server.hx, we call the function before
remove all socket in case of user need to remove some reference.

yannsucc/mphx,5Mixer/mphx