adds virtual destructors where appropriate

src/endpoint.hpp

@@ -410,6 +410,7 @@ struct endpoint_traits< endpoint<role, socket, logger> > {
         typedef typename connection_type::ptr connection_ptr;
         typedef typename message::data::ptr message_ptr;
         
+        virtual ~handler() {}
         
         /// on_load is the first callback called for a handler after a new
         /// connection has been transferred to it mid flight.

src/processors/processor.hpp

@@ -84,6 +84,7 @@ namespace processor {
     
 class processor_base {
 public:
+    virtual ~processor_base() {}
     // validate client handshake
     // validate server handshake