Adding skip if the app folder is missing. Fixing an issue when running in standalone mode.
Adding skip if the app folder is missing. Fixing an issue when running in standalone mode.

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