updates for evented signatures, one new example signature
category filters, more comments
refactor behavior processing to parse log only 1 time in total
debug statistics for log parsing after task done & when reprocessing
also give process to event_apicall in signatures
add a stop() method for evented signatures, don't use run() on them
don't need run() anymore
empty stop() method in example sig with comment
Merge pull request #131 from cuckoobox/eventsigs

Evented signatures