Add paging to diffs
PEP 8
Separate defined from definitions layer. Use defined in diffs
PEP 8
Use template which accounts for empty rhs
Merge pull request #405 from cmc333333/404-rhs

Use template which accounts for empty rhs
Merge pull request #404 from cmc333333/diff-defined

Add defined terms to diffs
Merge pull request #403 from cmc333333/diff-paging

Diff paging
Merge branch 'master' of github.com:eregs/regulations-site