Fixes #7344 - ignore saving errors during fact parsing
templates - sync from community-templates
Fixes #3840 - Removes unused Signo related code
fixes #7253 - change nil admin field on users to false, matches usergroups

When the admin field was nil, admin_changed? in user model validations can
evaluate to true if the field changed from nil to false.
fixes #7336 - editing compute resource should not clear existing attributes from the form