Mostly trying to standardize the way tests sleep for arbitrary amounts
of time to make it easier to tell at which particular point the
unit test actually may need the timeout interval increased (or else
debugged further).
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).
