Merge pull request #110 from gocardless/Activerecordwithlock/lock-job… #123

Job	Run time
rubocop	13s
active_record_with_lock_adapter_rspec (3.0)	41s
smoke_test (3.0)	38s
rspec (3.0)	44s
active_record_with_lock_adapter_rspec (3.1)	35s
smoke_test (3.1)	36s
rspec (3.1)	33s
active_record_with_lock_adapter_rspec (3.2)	36s
smoke_test (3.2)	35s
rspec (3.2)	33s
active_record_with_lock_adapter_rspec (3.3)	41s
smoke_test (3.3)	39s
rspec (3.3)	35s
	7m 39s

Provide feedback