Merge tag '0.0.2' into develop

Introduce support for 5 column format and variables
Change "from" => "recall" in statements
Rakefile: fix the way we check if data is loaded

We were looking at death_with_dates, a view that is no longer created
under 0.0.4+ of ConceptQL
Rakefile: fix bugs related to running benchmarks with dbtap
CHANGELOG: updates in prep for 0.0.3
Fix some statements, update some validation_results
Update validation_results to have value columns
Add script that added value columns
Now remove the script since it's saved for posterity
1in2out: fix PoS for finding outpatient visits
Gemfile: use local version of dbtap
Add OneInTwoOut statement
CHANGELOG: update for 0.0.3
Merge branch 'release/0.0.4'