DATA-1285 "iNaturalist/Flickr deduplication: switch to keep iNat version". This needs Patrick's approval.
Merge remote-tracking branch 'upstream3/master'
Make static var $last_harvest_event_id an array because as static it is initialized only in first call of function.
Fix wrong syntax.
Merge pull request #52 from eliagbayani/master

DATA-1285 "iNaturalist/Flickr deduplication: switch to keep iNat version...
Changed how we look up Flickr images in iNaturalist
Merge branch 'master' into data_harvest

Conflicts:
	lib/ArchiveDataIngester.php