move date published to first page
treat_missing_as_empty converter
make tag cleaning unicode-correct
new proposed_schema.xls
metadata_schema: new fields time_period_coverage_start/end, resource_type
fix integer values in examples
fix date values
remove old TODOs
Merge pull request #70 from wardi/master

New schema fields, date_published on create fix, fix example values, better tag-cleaning