[#74611940] Add Submission Callback System
[#74611940] Add Illumina-C Multiplexing requests
Merge db/schema.rb
Do not use kill -9
Merge branch 'production' into 74611940_illumina_c_post_qc_pooling
Fix customer accepts responsibility
Merge pull request #919 from JamesGlover/imporve_delayed_job_script

Do not use kill -9
Sometimes use kill -9

We give the delayed job 60s to terminate before taking more
drastic action.
Resolve merge conflicts
Merge pull request #920 from JamesGlover/improve_delayed_job_script

Improve delayed job script
Update db/schema.rb
Merge pull request #921 from JamesGlover/74611940_illumina_c_post_qc_pooling

74611940 illumina c post qc pooling