let listeners decide how equals is implemented instead of always using instance identity
let listeners decide how equals is implemented instead of always using instance identity

git-svn-id: ac804e38dcddf5e42ac850d29d9218b7df6087b7@509086 13f79535-47bb-0310-9956-ffa450edef68

martin-g/wicket-osgi,aldaris/wicket,apache/wicket,Servoy/wicket,apache/wicket,topicusonderwijs/wicket,klopfdreh/wicket,astrapi69/wicket,klopfdreh/wicket,klopfdreh/wicket,klopfdreh/wicket,mosoft521/wicket,Servoy/wicket,topicusonderwijs/wicket,topicusonderwijs/wicket,mosoft521/wicket,aldaris/wicket,aldaris/wicket,topicusonderwijs/wicket,Servoy/wicket,astrapi69/wicket,selckin/wicket,astrapi69/wicket,mafulafunk/wicket,mafulafunk/wicket,klopfdreh/wicket,bitstorm/wicket,Servoy/wicket,dashorst/wicket,zwsong/wicket,selckin/wicket,mosoft521/wicket,selckin/wicket,mosoft521/wicket,selckin/wicket,bitstorm/wicket,dashorst/wicket,aldaris/wicket,AlienQueen/wicket,bitstorm/wicket,zwsong/wicket,martin-g/wicket-osgi,freiheit-com/wicket,topicusonderwijs/wicket,AlienQueen/wicket,martin-g/wicket-osgi,AlienQueen/wicket,apache/wicket,dashorst/wicket,selckin/wicket,apache/wicket,freiheit-com/wicket,AlienQueen/wicket,apache/wicket,bitstorm/wicket,freiheit-com/wicket,zwsong/wicket,dashorst/wicket,AlienQueen/wicket,astrapi69/wicket,bitstorm/wicket,freiheit-com/wicket,dashorst/wicket,Servoy/wicket,zwsong/wicket,aldaris/wicket,mosoft521/wicket,mafulafunk/wicket,freiheit-com/wicket