Updating class doc block for Cache.
Updating class doc block for Cache.

whowgames/lithium,m4rcsch/li3_framework,wbeater/lithium,pixelcog/lithium,muyehub/lithium,mehlah/lithium,qoqa/lithium,pixelcog/lithium,UnionOfRAD/lithium,SensCritique/lithium,graphis/lithium,mehlah/lithium,wbeater/lithium,datachand/lithium,jails/lithium,m4rcsch/lithium-core-library,graphis/lithium,jails/lithium,davidpersson/lithium,datachand/lithium,SensCritique/lithium,UnionOfRAD/framework,whowgames/lithium,davidpersson/lithium,m4rcsch/lithium-core-library,UnionOfRAD/lithium,muyehub/lithium,qoqa/lithium