Fix qtypes' licenses

- Change from GPL to LGPL
- Add license text when missing
- Minor cosmetic changes to make all headers look the same

Signed-off-by: Luiz Capitulino <[email protected]>
diff --git a/qstring.h b/qstring.h
index 6aaa7d5..84ccd96 100644
--- a/qstring.h
+++ b/qstring.h
@@ -1,3 +1,15 @@
+/*
+ * QString Module
+ *
+ * Copyright (C) 2009 Red Hat Inc.
+ *
+ * Authors:
+ *  Luiz Capitulino <[email protected]>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ */
+
 #ifndef QSTRING_H
 #define QSTRING_H