added: privileges (user, groups, permissions)

(not finished yet)
       classes: User, Group, Users, Groups, UGContainer
changed: Dir class into Dirs


git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@467 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/error.cpp

@@ -28,6 +28,12 @@ Error::Error(int i)
 }
 
 
+Error::Error(const Error & e)
+{
+	code = e.code;
+}
+
+
 Error::operator int() const
 {
 	return static_cast<int>(code);	
@@ -40,6 +46,11 @@ Error & Error::operator=(Code c)
 	return *this;	
 }
 
+Error & Error::operator=(const Error & e)
+{
+	code = e.code;
+	return *this;	
+}
 
 bool Error::operator==(Code c) const
 {