edx-solutions/xblock-mentoring — pull request #78 by bradenmacdonald (2014-09-12 09:01:29+00:00)
Title: Opaque keys follow up

Same as gsehub/xblock-mentoring#8. The `serialize_opaque_key` method has been removed, since the handling of deprecated keys and opaque keys is now handled automatically by `OpaqueKey. __unicode__()` in `opaque-keys/opaque_keys/__init__.py`.