Update wirepas_messaging version number (#36)

In preparation for release 1.2.0

Author: PFigs

wrappers/python/wirepas_messaging/__about__.py

@@ -20,7 +20,7 @@
 __pkg_name__ = "wirepas_messaging"
 __title__ = "Wirepas Messaging Wrappers"
 __url__ = "https://github.com/wirepas/backend-apis/tree/master/wrappers/python"
-__version__ = "1.2.0rc3"
+__version__ = "1.2.0"
 __warning_msg__ = """
 ***********************************************************************
 * WARNING: