Merge in RED/redaction-service from dev/update-rules-on-redaction-requests to master
* commit 'bf89e42fcf597033a17acc63919f62aed6640285':
DEV: Update rules on each redaction request.
Merge in RED/redaction-service from dev/rules-validation to master
* commit '23741deff713d5c865c13aa3a8cac73795d969e8':
DEV: Use appropriate HTTP request type.
DEV: Handle rules validation exception when updating.