Fixed issue with the extraction of the packet payload size
Added getPayloadPointer() method + test
Removed getPayloadPointer method due to REDESIGN
Revert "Redefined sendFant in TestbedARAClient to use TAP address as source"

This reverts commit 3a6d7fc2debca388b8b1ce9580d3606d29bed37c.
Added logDebug output to dump routing table when new route is added. WARNING! VERY SPAM INTENSIVE!
Possible Segfault fix
minor changes to routing table dumps
Fixed Pheromone value display in routingtable output
Removed incomplete receive method in Testbed::NetworkInterface
Overrided FANT creation in testbedARAClient such that routes will no longer be established to a meshif, only to sysifs. May solve duplicate packet errors. Doubtful.
Moved the TestbedTime, TestbedTimer and TestbedClock into the libARA src (renamed)

Those implementations can be used in general whenever the real operating
system clock and threads should be used. Therefore I renamed the classes
to StandardTime, StandardTimer and StandardClock. I am still open for
other names though :)
minor fixes to class NetworkInterface