Adding get_counts method to ScalingGroupCollection
remove check for deleted key in _cql_count_for_tenant
remove check for deleted key from test_cass_models
add get_counts to mock interface
semicolon is more than semi important
merging master in
update test_get_counts to be more readable
removing test that should not be in there
fix returns in test
Merge pull request #241 from rackerlabs/AUTO-112

Adding get_counts method to ScalingGroupCollection