Local AS causes exception

[tzaeschke]

Running traceroute, ping or showpaths (with probing) on the local AS causes an exception:

java.lang.IllegalStateException: Missing messages: 1/1
	at org.scion.cli.util.Prober$PingResponseHandler.await(Prober.java:111)
	at org.scion.cli.util.Prober.probe(Prober.java:56)
	at org.scion.cli.Showpaths.run(Showpaths.java:145)
	at org.scion.cli.Showpaths.run(Showpaths.java:68)
	at org.scion.cli.Cli.run(Cli.java:59)
	at org.scion.cli.Cli.lambda$main$0(Cli.java:33)
	at org.scion.cli.util.Util.handleExit(Util.java:117)
	at org.scion.cli.Cli.main(Cli.java:33)