Add a place to upload CSV files to the admin panel.
Lots of progress on awarding from a CSV file. Currently dealing with a Tahrir API issue, so the code is broken at the moment.
Merge branch 'release/0.5.2' into develop
Deal with доверие.
Merge pull request #261 from fedora-infra/feature/UnicodeExplosionError

Deal with доверие.
Allow admin to set default avatar explicitly.

This is to get around a heisenbug we're seing in production, where
*sometimes* the request.static_url returns the url of badges.fp.o, and
*other* times it returns localhost.  Very frustrating.

If we just let the admin hardcode it, everything will be easier.
Merge pull request #263 from fedora-infra/feature/default-avatar

Allow admin to set default avatar explicitly.
Merge branch 'develop' into feature/csv-award
CSV badge awarding works.
Improve CSV award info on admin template.
Ignore strange ropeproject files I suppose.
Flash message to say how many badges were successfully awarded from the CSV awarder.
Merge pull request #265 from fedora-infra/feature/csv-award

Mass-award badges with this one strange trick!
Link to the reason you were awarded a badge.
Merge pull request #269 from fedora-infra/feature/link-to-reason

Link to the reason you were awarded a badge.
Be careful when generating badge json.

Fixes #260.
Merge pull request #271 from fedora-infra/feature/careful-in-json-generation

Be careful when generating badge json.
Allow a no-modal mode for export.

We had problems exporting badges from the sugar stack 'browse' activity,
since it doesn't support pop-ups.

This allows the server to disabled the popup flow for badge exporting
with a config value.
Merge pull request #273 from fedora-infra/feature/no-modal-for-sugar-browse

Allow 'no modal' mode for badge exporting.
Fix unclosed URL link