settings/production: do not configure memcache if cache_uri is unset
this is needed so we can spawn a production-like webapp (in docker) without a memcache (makes documentation writing easier).
Migrated from D1679 (view on Phabricator)
Staging instance, all changes can be removed at any time
this is needed so we can spawn a production-like webapp (in docker) without a memcache (makes documentation writing easier).
Migrated from D1679 (view on Phabricator)