Merge branch 'master' of github.com:dellsystem/wikinotes
Fix bug when creating pages for seriesless courses

If a course doesn't have any series, the series selector dropdown
doesn't appear, which would cause an error when creating a page.
Link to commit page in dashboard

Accomplishes what pull request #200 was meant to address. I decided to
link to the actual commit page and not just the relevant table row on
the history page because the page won't always be long enough that we
can scroll completely to that row.

REQUIRES DB SCHEMA MIGRATION
Add back *_data.html files

Reverting commit 64eaf0f86bb20b24d6f5dd1e4ecb9e2f50bc70dc. Turns out
those files were actually really important and I never noticed because
I'm only ever signed in as an admin oh god so dumb need to check my
admin privilege next time