null check
Merge branch 'appkit_5.0' of https://github.com/xwic/appkit.git into appkit_5.0
Fixed PicklistEntryCheckBoxControl. Now uses correct template (CheckBoxGroup instead of CheckBox)
removed debug. fix potential cause for NPE in picklistentrycontrol
make WizardContainer overflow to overlay
Merge branch 'bogdan_picklistcheckbox_fix' of https://github.com/xwic/appkit.git into appkit_5.0

Conflicts:
	de.xwic.appkit.webbase/src/de/xwic/appkit/webbase/utils/picklist/PicklistEntryCheckboxControl.java
Merge branch 'appkit_5.0' of https://github.com/xwic/appkit.git into appkit_5.0

Conflicts:
	de.xwic.appkit.webbase/src/de/xwic/appkit/webbase/toolkit/components/WizardContainerFix.java