fix webhooks test
added tests for update scheduler, without args
fixed missing delete groups
Merge branch 'master' into fix-tests
review
Merge branch 'master' into fix-tests
fixed delete group for test
yay review
compose_retries implemented

It combines multiple can_retry function to a single function
404 on delete node succeeds - thanks @cyli
Merge pull request #498 from rackerlabs/retry_compose

compose_retries implemented
Logging all errors
Merge pull request #479 from rackerlabs/fix-tests

fix tests (ready for review)
Add a logging treq module to log all treq requests
Use logging_treq instead of treq
Use reactor.seconds instead of time.time
Start delete jobs at different interval

This is to temporarily to avoid LB going into ERROR state when many nodes
are tried to delete at same time
Merge pull request #500 from rackerlabs/logging_treq_requests

Logging treq requests
All deletes goto pool

so that otter does not shutdown until delete jobs are finished
Merge pull request #503 from rackerlabs/all_del_pool

All deletes are finished before shutdown