NYMMS alerts when SOFT recoveries become HARD recoveries

Per this: http://nagios.sourceforge.net/docs/3_0/statetypes.html

When we get a soft failure state, then an OK failure state (which will be soft), and then finally go to a HARD/OK state no notification should be sent by default. I've seen it send alerts though. Need to decide if this should be configurable via filters (should be easy enough to do) or if it should be a core part of the reactor logic.