[fixes #53377189] Add donor_id to sample pages
Merge pull request #774 from JamesGlover/53377189_donor_id_is_missing_from_samples_page

[fixes #53377189] Add donor_id to sample pages
[fixes #53381343] Rescue Project Validation errors
Improved named_scope for identifiers
[fixes #45679401] Ensure reference genome broadcast correctly
Merge pull request #776 from JamesGlover/45679401_add_reference_genome_to_current_warehouse_b

[fixes #45679401] Ensure reference genome broadcast correctly
Merge pull request #775 from JamesGlover/53381343_submission_interface_should_present_exceptions

[fixes #53381343] Rescue Project Validation errors
[fixes #52224723] Use POLICY_FILE not POLICY_URL
Merge pull request #777 from JamesGlover/52224723_policy_text_field_should_be_url

[fixes #52224723] Use POLICY_FILE not POLICY_URL
Merge branch 'production' into 53289573_requests_should_start_when_work_commences