Allow EndpointHost.GetPlugin<T> to return null for unregistered plugins
Allow EndpointHost.GetPlugin<T> to return null for unregistered plugins

MindTouch/NServiceKit,MindTouch/NServiceKit,ZocDoc/ServiceStack,NServiceKit/NServiceKit,timba/NServiceKit,nataren/NServiceKit,NServiceKit/NServiceKit,nataren/NServiceKit,ZocDoc/ServiceStack,timba/NServiceKit,ZocDoc/ServiceStack,MindTouch/NServiceKit,timba/NServiceKit,MindTouch/NServiceKit,NServiceKit/NServiceKit,timba/NServiceKit,NServiceKit/NServiceKit,nataren/NServiceKit,nataren/NServiceKit,ZocDoc/ServiceStack