Parallize stopping r=rail
Fix impaired slave handing; randomize the order we visit slaves
Fix launch time timezone handling for impaired instances
aws_safe_stop_instance call shouldn't raise exceptions
Simplify aws_create_instance.py
Use args.hosts, not args
Simplify aws_create_puppetmaster.py
Pass instance name
Move db to secrets
Put watch_pending.cfg under version control

--HG--
rename : aws/watch_pending.cfg.template => aws/watch_pending.cfg
Wait on threads properly
Use argeparse, explicitly read secrets
Remove quotes around int
Explicitly use str
Update puppet master snapshots
Linux leak test builds should be watched too. r=rail
Retry run_instances
Remove not needed parameter
Report how many slaves we stopped
Fix intermittent strptime errors and missing tags after stopping instances.