PT-1005, PT-1108, PT-1111, PT-1133, PT-1137, PT-1161, PT-1178, PT-1183, PT-1146 - Updated the Shunt module, fixed several issues with the API Key Manager module, fixed various bugs in the signatures_queue module, and fixed response formatting in the signatures resource.

 	modified:   UPDATE.txt
 	modified:   build-petitions.make
 	modified:   drupal-org.make
 	modified:   modules/custom/api_key_manager/api_key_manager.module
 	modified:   modules/custom/api_key_manager/api_key_manager.views_default.inc
 	modified:   modules/custom/api_signatures/api_signatures.inc
 	modified:   modules/custom/api_validations/api_validations.module
 	deleted:    modules/custom/gsa_auth/gsa_auth.info
 	deleted:    modules/custom/gsa_auth/gsa_auth.module
 	modified:   modules/custom/signatures_queue/includes/initiate_signature_validation.inc
 	modified:   modules/custom/signatures_queue/includes/preprocess_signatures.inc
 	modified:   modules/custom/signatures_queue/signatures_queue.module