Fixed next, previous links for appendix sections
PEP8 and pyflakes changs
Renamed reg.py to something meaningful, also ensured we do not repeat title parsing code
Renamed test file
PEP8 changes
Merge branch 'master' of github.com:eregs/regulations-site into dynamic_section
Merge pull request #233 from khandelwal/dynamic_section

Fixed next, previous links for appendix sections.