merge
Merge branch 'master' of github.com:ucb-sts/sts
simulator.py: allow for logging config, exit with return value from sim
event_scheduler: add event scheduler stats
replayer: add round output
bunch of places: define __ne__ methods

python doesn't delegate __ne__ to __eq__ by default
fingerprints: include port in fp for action output
fingerprints: nicer human readable output
sts.topology: sleep some time during controller connection to make sure switches
arrive in order
sts.util.console: event_success and event_timeout helper methods