move cafe requirements
Merge pull request #741 from rackerlabs/move_cafe_requirements

move cafe requirements
Test tweaks

Get rid of mocks. Use realistic return values.
Rewrite test to make it easier to edit
Actually, lb_config, not lb_id
Add docstring examples for CLB-only LBs
Smallest change without breaking the tests

Just add a little layer of indirection...
Clarify that all of these are old-style now
Merge branch 'master' into use-lb-dict-in-worker