added add-delete lb client and fixture to delete lb successfully
fixed lint errors
added tests
changed test to also verify nova
Merge branch 'master' into AS-34-delete-lbaas-test
Load balancers are created as part of the tests itself
skipping with issue number - scaledown-when-lb-deleted test
Merge pull request #559 from rackerlabs/AS-34-delete-lbaas-test

AS-34-delete-lbaas-tests (ready for review)