Check if Chaos tools (ctools) module is enabled before attempting to enable views_content_cache which requires ctools.
Disable views_cache_bully if commerce module is enabled (does not matter where it is located).
Enable fast Redis lock implementation by default on D7 and D6 sites.
Update INI docs for views_cache_bully and views_content_cache which are no longer enabled by default, but with instance-wide optional switch to make that happen.