Add publication date, fr volume, fr page to the sxs layer
PEP 8
Carry along E tags and add spaces
PEP 8
Merge pull request #114 from cmc333333/keep-emphasis-sxs

Keep emphasis sxs
Add spacing to titles of notices
PEP 8
Merge upstream
Merge pull request #113 from cmc333333/expand-analyses

Add additional details to analysis layer
Merge pull request #115 from cmc333333/notice-title-space

Add space to section headers of SxS
Account for paragraphs where the section symbol is present
Account for 'Official Interpretations of ' in SxS
Merge pull request #116 from cmc333333/sxs-wrong-parse

Two Tweaks to SxS parsing