Don't pass a string; pass a dict
Surface fr_volume in notice structure
Add federal register page to SxS
Include page number at all levels of the tree. Remove excess tags from a /copy/ of the node
Enforce SxS ordering
Allow subparts without sections
Allow other characters to terminate the section number
Allow >26 unnamed levels in appendices
Allow even more appendix paragraphs
Fix tests
Add tests, better comments about appendix markers
Merge pull request #101 from cmc333333/diff-fix

Bug Fixes and Extra Data