Issue #84 -- emit esl::end on socket::close

[ssinyagin]

net.Socket emits "end" only on successful closing, but it emits "close" in error conditions as well.

[englercj]

Thanks for tracking this down. Looks like this breaks one of the tests, can you look into why that is please?

[ssinyagin]

seems like you're expecting connection::close while the socket is still alive. With my patch, the close event comes when the socket is done.

[englercj]

Makes sense, I'm happy to merge this once the tests are passing.