Added vidreview2 and meetup3, removed meetup2, moved Hudl talk

Added meetup3 and vidreview2 (oops).  Removed meetup2 because the link was
to the Hudl talk, as I had incorrectly thought that was the correct tag.
Instead, the Hudl talk blog post link now resides below my hackathon links.
Merge branch 'master' of https://github.com/decause/hflossk
Added hackathon4 and hackathon5 to Faokryn.yaml

Renamed hudltalk as hackathon4 and added hackathon5
Added hackathon6 to Faokryn.yaml
Merge pull request #606 from Faokryn/master

Added vidreview2 and meetup3 and removed meetup 2 from Faokryn.yaml