adds is_secure method to transport endpoint

websocketpp/transport/asio/endpoint.hpp

@@ -307,6 +307,10 @@ public:
     boost::asio::io_service& get_io_service() {
     	return *m_io_service;
     }
+    
+    bool is_secure() const {
+        return socket_type::is_secure();
+    }
 protected:
     /// Initialize logging
     /**

websocketpp/transport/iostream/endpoint.hpp

@@ -71,6 +71,20 @@ public:
         m_alog->write(log::alevel::devel,"register_ostream");
 		output_stream = o;
 	}
+	
+	/// Tests whether or not the underlying transport is secure
+	/**
+	 * iostream transport will return false always because it has no information
+	 * about the ultimate remote endpoint. This may or may not be accurate 
+	 * depending on the real source of bytes being input.
+	 *
+	 * TODO: allow user settable is_secure flag if this seems useful
+	 *
+	 * @return Whether or not the underlying transport is secure
+	 */
+	bool is_secure() const {
+	    return false;
+	}
 protected:
     /// Initialize logging
     /**