Security Considerations section template and issue #8 marker in metadata document.
Reference issue #16 from metadata document for cross-references between different publishers.
Reference issue #22 about `type` vs `datatype` in column properties. Note, this issue seems moot, as neither are listed now. Perhaps this can be resolved and closed?
Reference issue #32 on row numbering from metadata doc.
Add issue #33 reference from metadata document when no column name is present.
Reference issue #56 from metadata document on multiple titles.
Reference issue #61 from the metadata document on mapping empty cells.
Reference issue #63 from metadata doc on clarifying foreign key references.
Reference issue #64 on suppressing columns to metadata doc.
Reference issue #65 on date-time picture string formats from metadata doc.
Reference issue #66 from metadata doc.
Fix missing reference for inherited properties as raised in issue #67.