Allow worker to specify whether to cache http requests.
Release 0.2.22
Better usage of the --cache argument to holmes-worker
release 0.2.23
Store_true does not require type
release 0.2.24
Cascade deleting facts and violations
release 0.2.25
Removal of facts and violations before removing review
release 0.2.26
Removed unused imports
Fixed  WorkerTestCase

Fixed test_do_work_if_api_is_up_and_job_available_but_reviewer_fails
Fixed test_config_parser in WorkerTestCase