Changing Throughput test program to a Python based one.

* This change is need to prevent problems related to the TCP send buffer
being overflowed in the original Throughput app which resulted in the
greetingListener thread being blocked. Thus not detecting further
contats and not initiating the Throughput test.

Signed-off-by: Daniel Bittencourt <dcb@dcc.ufam.edu.br>
Changing Throughput app from java to Python

Signed-off-by: Daniel Bittencourt <dcb@dcc.ufam.edu.br>
Updating genContactLogs script to use original log format and adding
original genContactLog.pl script. The previous, modified one is still
usefull so we will still keep it

Addind useful script to destroy tap interfaces when need, jus need to
pass the number of taps to be destroyed

Signed-off-by: Daniel Bittencourt <dcb@dcc.ufam.edu.br>