write task updates to sqs
Fix sqs task history
Try to log metadata from configs
Allow us to pass parameters into worker id and attach to task history
Add worker events so we know when worker stops
Send worker started event.
Fix tests
Code Review Changes and Tests for sqs history
Read config to see if a specific worker_id should be used.
Add link to sqs page.
Merge branch 'master' into jkarn_sqs_task_history

Conflicts:
	luigi/scheduler.py
	luigi/worker.py
	test/cmdline_test.py
Fix tests
Merge pull request #5 from mortardata/jkarn_sqs_task_history

[#77546660] Jkarn sqs task history