add OverLimitError
check number of existing scaling groups against maxGroups before creation of
new ones
test for cass create_scaling_group to obey limits
update mock create_scaling_group to obey limits
test if mock create_scaling_group obeys limits
add assert tests for expectedcql in overlimit and underlimit tests and add cleanup
remove set_config_data from underlimit test
fixing cass and mock tests for limits endpoint
bind log in single place
use list vs create in get_consistency_level
revert test back to called_once_with
bind log to log variable
move group creation inside its own function
update overlimiterror to scalinggroupoverlimiterror
Merge pull request #433 from rackerlabs/auto-712

Auto 712