small fixes

libs/main/io_devices/piconfig.h

@@ -63,6 +63,8 @@ class PIP_EXPORT PIConfig {
 	friend class Branch;
 
 public:
+	NO_COPY_CLASS(PIConfig);
+
 	//! Contructs and read configuration file at path "path" in mode "mode"
 	PIConfig(const PIString & path, PIIODevice::DeviceMode mode = PIIODevice::ReadWrite);