Netcontrol log now includes more information; before that, it had not
quite caught up to the new capabilities (like flow modifying and
redirection, as well as mac addresses).
Furthermore, this fixes a number of bugs with cluster mode (like
duplicate events), test failures due to updates in Bro, etc.
Events now generally carry the unique ID of the backend that is given
during initialization; there are a few more functions and other
bugfixes.
A few netcontrol tests are still broken (mostly due to a pcap update in
msater).
I just noticed - the OpenFlow events also really should send the
instance of openflow that they are with them. That is a... tad
complicated though due to a number of reasons (among others how the
events are currently generated), so this will have to wait for a bit.
