[OPENENGSB-502] added changelog entry for the maven-openengsb-plugin
[OPENENGSB-502] added changelog entry for the maven-openengsb-plugin

openengsb/openengsb,openengsb/openengsb,openengsb/openengsb,openengsb/openengsb,openengsb/openengsb,openengsb/openengsb