Fixed `bb_organizations` factory models.
Fixed queryset in `ManageOrganizationList` view.
Fixed permissions for `bb_organizations`.
Fixed `bb_organizations` serializers.
Fixed `ManageOrganizationList` view.
Fixed `bb_organizations` API unit tests.
Merge pull request #274 from jose-lpa/refaktor

Fixes ``bb_organizations`` to match the new models schema