Fixes #5: Add homepage links to openbadges.org
Merge pull request #6 from lmorchard/5-link-to-openbadges

Fixes #5: Add homepage links to openbadges.org
Fixes #5: Small tweak to shorten open badges blurb heading
Merge pull request #7 from lmorchard/5-link-to-openbadges

Fixes #5: Small tweak to shorten open badges blurb heading
Ensure unique field appears in create / edit forms