handle a couple of flags that may be set in fsevents
handle a couple of flags that may be set in fsevents

Log when we resync, along with the eventid, so that we can get a feel
for how many events we dropped.

Also remember when the event id overflows so that we don't bother trying
to resync.

dhruvsinghal/watchman,facebook/watchman,facebook/watchman,dhruvsinghal/watchman,wez/watchman,dhruvsinghal/watchman,nodakai/watchman,nodakai/watchman,kwlzn/watchman,dhruvsinghal/watchman,nodakai/watchman,kwlzn/watchman,facebook/watchman,kwlzn/watchman,kwlzn/watchman,wez/watchman,nodakai/watchman,wez/watchman,dhruvsinghal/watchman,kwlzn/watchman,kwlzn/watchman,nodakai/watchman,wez/watchman,dhruvsinghal/watchman,facebook/watchman,wez/watchman,wez/watchman,nodakai/watchman,wez/watchman,nodakai/watchman,facebook/watchman,facebook/watchman,wez/watchman,facebook/watchman,nodakai/watchman,wez/watchman,nodakai/watchman,dhruvsinghal/watchman,facebook/watchman,kwlzn/watchman,facebook/watchman,dhruvsinghal/watchman