Trivial indentation cleanup
Fix image URL
Add badge delete icon

Not wired up to any action yet though
Add placeholder for badge description

Awaiting the 'description' field in the openbadger API call, see
https://github.com/mozilla/openbadger/issues/175
Merge pull request #360 from paulsmith/mybadges

[WIP] Implement /mybadges
Merge branch 'master' into guardians
Templates
OpenBadger API flexibility
Getting activities
Views