Adding Locale model

Also doing some cleanup, removing extra migrations
Changing field names, adding globalize

Variations are being replaced with Content for the time being. It’s
possible the structure will drastically change.
Fixtures are now working

Also updated site to use label instead of name
Thinking about how to build localized paths

Loop through all available locales for this page and build the expected
path. All pages have a slug in (at least) the default locale, which is
what we fallback to when the slug is not available in our desired
locale.
Broken commit, working on path generation and locales
Path generation test.
Example of failing test
Some changes to the migration file.
Merge branch 'feature/foundations' of github.com:MomentumCMS/momentum_cms into feature/new_migrations
Merge pull request #3 from MomentumCMS/feature/new_migrations

Some changes to the migration file.
Adding fallback feature to dummy app. Tests are passing.