fix task update problem in task list
fix task update problem in task list

Conflicts:

	app/assets/javascripts/task.js

xuewenfei/jobsworth,xuewenfei/jobsworth,webstream-io/jobsworth,rafaspinola/jobsworth,ari/jobsworth,digitalnatives/jobsworth,xuewenfei/jobsworth,digitalnatives/jobsworth,rafaspinola/jobsworth,ari/jobsworth,ari/jobsworth,digitalnatives/jobsworth,webstream-io/jobsworth,digitalnatives/jobsworth,digitalnatives/jobsworth,ari/jobsworth,rafaspinola/jobsworth,webstream-io/jobsworth,xuewenfei/jobsworth,rafaspinola/jobsworth,webstream-io/jobsworth