Traceroute should stop after multiple timeouts or send out requests simultaniously

[MKV21]

At the moment the traceroute measurement tries 19 hops even if after for example the 8th hop all results are timeouts (because the 8th hop was not a "destination reached"). The traceroute from my probe to mnet took over 96 seconds, only the first 6 hops gave results. We could include some mechanism to abort after n hops resulted in a timeout to speed up the measurement.

The traceroute-tool does 16 requests simultaneously, maybe we can do that too? (as parameter)