[#36640971] Ensure we don't leak DB connections
Merge pull request #1 from mattdenner/36640971_user_barcode_process_doesn_t_release_connections

[#36640971] Ensure we don't leak DB connections
[#42198561] Upgrade to ActiveRecord 2.3.15
Merge pull request #2 from mattdenner/42198561_rails_vulnerabilities

[#42198561] Upgrade to ActiveRecord 2.3.15
Merge pull request #3 from sanger/production

Production