QueryPayload returns data
updated QueryPayload to return a format like the base oplog
got basic DeltaStream working... recognized the need for internal cache to handle more complex scenarios
added addTo to util
tests working for convertToIdQuery
changed expectation to be only 'in'
converted to inclusive only format for idQuery
QueryPayload accepts idSet instead of query
added comment
corrected default case for query conversion, renamed to convertToIdSet
QueryDelta filters on idSet
added _id to payload events
removed setToArray - not used
extractKeys uses mori.set, removed addUnique
added listenNTimes to util
added callback to listenNTimes
fixed listenNTimes
made listenNTimes only call back when all done
changed listenNTimes name to 'sample'
added boilerplate and refactored QueryDelta test to use it