MCHANGES-363: Add support for opened issues in announcement Mojo Generate announcement file including current opened issues. Really handy if you want to test your announcement chain without having to actually commit your changes or close issues on github. It is currently supported when you generate the github report but not supported when you generate the github announcement. Closes MCHANGES-363
maven/plugins/trunk/maven-changes-plugin/src/main/java/org/apache/maven/plugin/announcement/AnnouncementMojo.java