merge stable
Merged galaxy/galaxy-central into default
merge stable
Merged galaxy/galaxy-central into default
merge stable
Merged galaxy/galaxy-central into default
Merged galaxy/galaxy-central into default
Allow Model objects to be loaded when they have bad JSON values. When bad JSON is encountered, substitute with None.
Safe fix here, but we should follow up on the database migration to avoid having cruft.

Merged in dan/galaxy-central-prs (pull request #511)

Allow Model objects to be loaded when they have bad JSON values. When bad JSON is encountered, substitute with None.