Remove fixures from vcr not meant to be committed
Add non-rspec fixture/test paths to .gitignore
Remove rails generated test fixtures
Centralize fixtures from oakland import to spec dir
Merge branch 'feature/centralize_and_cleanup_fixtures' into dev
New Data Model commits, squashed into one.
Implementing tagging for the Question model.

Implementing tagging for the Question model.
Restored breadcrumbs to Tag pages
Restored breadcrumbs for answers pages
Added json views for tags API
added basic view specs for tags
Removed unneeded json views for questions (non api)
Added mocks to tags controller spec
Merge pull request #203 from 18F/feature/tagging_sensibly_squashed

Feature/tagging sensibly squashed
Packaging bundle in vendor to speed up travis runs