Merge pull request #760 from rackerlabs/remove-from-lb-request-fn

request_func for remove_from_load_balancer (and friends)
Clean up test imports
Move auth functions out of worker
Use new location in validate_config
Use new location in otter.http
Use new location in metrics

Also remove TODO to do exactly that. You're welcome, @manishtomar ;)
Use new location in convergence

Also remove TODO to do exactly that, again.
Merge pull request #768 from rackerlabs/move-auth-stuff-from-worker

Move auth-specific stuff from otter.worker.launch_server_v1 to otter.auth
Qualify assertion intent in the test
ReST markup
Clarify more intent about request_func correctness
Have a test region
Write a test for the request_func
Write something that should make the test pass

... if config_value wasn't a totally useless piece of junk
Oops debugger
Add cleanup
ReST markup fixes
More ReST markup fixes
Add a failing test
Apply toolz judiciously