Added vidreview2 and meetup3, removed meetup2, moved Hudl talk
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.

decause/hflossk,decause/hflossk