callback refactoring
Merge branch 'master' of
ssh://git@github.com:22/pellepelster/myadmin.git

Conflicts:
	de.pellepelster.myadmin.client.gwt/src/de/pellepelster/myadmin/client/gwt/modules/dictionary/container/BaseVOSelectionPopup.java
	de.pellepelster.myadmin.client.gwt/src/de/pellepelster/myadmin/client/gwt/modules/dictionary/container/VOSelectionPopup.java
	de.pellepelster.myadmin.client.gwt/src/de/pellepelster/myadmin/client/gwt/modules/dictionary/controls/HierarchicalControl.java