[#4927] ticket:185 logging added for task cancel and requeue
[#4927] ticket:185 logging added for task cancel and requeue

heiths/allura,heiths/allura,apache/incubator-allura,heiths/allura,apache/allura,lym/allura-git,apache/allura,lym/allura-git,apache/incubator-allura,apache/incubator-allura,apache/allura,heiths/allura,apache/incubator-allura,heiths/allura,lym/allura-git,lym/allura-git,lym/allura-git,apache/allura,apache/allura