add slf4j-ext into dependency management
add slf4j-ext into dependency management

git-svn-id: 5a74b5304d8e7e474561603514f78b697e5d94c4@1158961 13f79535-47bb-0310-9956-ffa450edef68

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