Merge pull request #267 from wardi/master

fixes for openness calculations, move openness scores to proposed_schema.xls
start of required_if_ready_to_publish work
fix for not_empty_when_catalog_type
navl tests: set ready_to_publish by default
navl test: convert validation_override test to ready_to_publish
test first ready_to_publish needs a validation error
start of work collecting required fields for ready_to_publish error