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Merge branch 'master' of https://github.com/kotick/Whisky

Conflicts:
	Whisky-ejb/src/java/entity/Participant.java
	Whisky-ejb/src/java/sessionBeans/ParticipantManagementSB.java
	Whisky-ejb/src/java/sessionBeans/ParticipantManagementSBLocal.java
	Whisky-web/web/base.xhtml
	Whisky-web/web/teacher/lecture.xhtml