[#39854457] Add index on sanger_sample_id
Added convenience method to delete records correctly
Merge pull request #57 from mattdenner/39854457_add_index_on_sanger_sample_id_to_current_samples_for_npg

39854457 add index on sanger sample id to current samples for npg
[#40269467] Add control script to warehouse
[#40269467] Correct script name and make executable
[#40269467] Update scripts for improved output/reliability
Merge pull request #58 from JamesGlover/40269467_add_shell_script_to_startup_stop_workers

40269467 add shell script to startup stop workers
[#42198561] Upgrade to Rails 3.2.11
Merge pull request #59 from mattdenner/42198561_rails_vulnerabilities

[#42198561] Upgrade to Rails 3.2.11