Diff users should be taken back to the version they came from
Add from_version to TOC and next, previous links
PEP8
add tests for from_version
PEP8
Merge pull request #437 from khandelwal/diffs_back

Diff users should be taken back to the version they came from
potential solution for travis to run an instance of the site and run tests off of it
Merge branch 'master' of github.com:eregs/regulations-site
Merge branch 'master' of github.com:theresaanna/regulations-site