Changed version number in the bayes net gui code since this version

of the library breaks backwards compatibility with the old serialization
format used by this program.

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%402349

examples/bayes_net_gui_ex.cpp

@@ -626,7 +626,7 @@ on_menu_help_about (
 {
     message_box("About","This application is the GUI front end to the dlib C++ Library's\n"
                 "Bayesian Network inference utilities\n\n"
-                "Version 1.1\n\n"
+                "Version 1.2\n\n"
                 "See http://dclib.sourceforge.net for updates");
 }