Adding preview of `cache_clear_eval_code` option configuration.
Bug fix. Removing non-existent array option keys for Pro Preview features.
Adding additional Multisite check against `VHOST`.
Bug fix; closes WebSharks/Quick-Cache#25
Bug fix; multisite option values.
Releasing v131206.
Merge pull request #29 from JasWSInc/000000-dev

Releasing v131206.