RubyFS::Stream does not restart when connection goes away

[bklang]

Steps to reproduce:

1. Start a new RubyFS::Stream like this:

   RubyFS::Stream.supervise_as :fs_es, config.freeswitch.host, config.freeswitch.port, config.freeswitch.password, ->(e) { handle_event e }, true
   
   def handle_event(e)
     puts "Received event! #{e.inspect}
   end

2. Observe events (such as Heartbeat) are successfully coming in from FreeSWITCH and being printed

3. Restart FreeSWITCH. The following log messages are printed:

   
   [2015-12-16 08:32:04.846] INFO  RubyFS::Stream: Client socket closed due to (EOFError) end of file reached!
   [2015-12-16 08:32:04.846] DEBUG RubyFS::Stream: Finalizing stream
   

4. After FreeSWITCH is back up, note that no more messages are being logged.