Added control containers first draft
Added DateColumnSetContainer control
fixed empty element problem in EntityListView
Merge remote-tracking branch 'origin/appkit_5.0' into danih_ui_redesign
fixed foreach mistype in datacolumnsetcontainer.vtl
Fixed double separators
Fixed WindowContainerFix
Merge branch 'danih_ui_redesign' of git@github.com:xwic/appkit.git into appkit_5.0
Merge branch 'bogdan_#1246_layout_containers' of git@github.com:xwic/appkit.git into appkit_5.0
added javadoc comments, throw out todos