v.0.92.15

Added optional in memory cache.

Optional config parameters in main.yaml

cache_size_mb Enable internal cache with size in megabytes of value. Cache is entirely disabled when this line is commented out
cache_ttl Set Default TTL in seconds for cached items, works if cache control headers are not set via upstream. Defaults to 60 if cache_size_mb is set

No braking changes in config files.