Bump revision to 0.2.20, add link to LISC presentation
Added copyright, licence and authorship statements to source code modules.
Tweak notes, unhide slide
Add LISC papers, final links to presentation
Improve metadata query diagnostics; update documentation diagram; move documentation file
Fix error in diagram
Added reporting constructs to Minim model ontology; updated result ontology; updated result ontology diagram.
Copy README updates from master branch
Add facility to collect list of query variable values for checklist reporting.  Update mkminim to support value collection.
Updated README; all tests pass
Change minim:modelUri in results graph to minim:testedModel
Further revise results ontology and definitions; about to start re-working code tghat uses them
Implemented revised checklist result graph structure; updated trafficlight report; updated tests; all tests pass
Improve formatting of collected list values in checklist reports
Update revision history in README and __init__.py;  all tests pass
Finalize revision history for release 0.2.20
Merge branch 'develop' for release 0.2.20