https://redmine.openinfosecfoundation.org/issues/2417
Add option to have pcap files deleted after they have been processed.
This option combines well with pcap file continuous and streaming
files to a directory being processed.
Autoconf/automake and python setup.py don't play that well
together with out of tree builds.
Makes suricatasc not an autoconf input file, instead use the
defaults module that is already being created.
In the case of an out of tree build, copy the generated defaults.py
to the build directory manually.
Use a new directory, Python to host the Suricata python modules.
One entry point is suricatactl, a control script for
miscalleneous tasks. Currently onl filestore pruning
is implemented.