Adding method_exists() check for strategy method call.
Adding method_exists() check for strategy method call.

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