removed versions in dependencies
Merge branch 'master' of https://github.com/martinschwietzke/pac-conference

Conflicts:
	conference/pac-conference-room-api/pom.xml
	conference/pac-conference-room-impl/pom.xml
	conference/pac-conference-speaker-api/pom.xml
	conference/pac-conference-speaker-impl/pom.xml
	conference/pac-conference-talk-api/pom.xml