fixed typo in docs
ListCollection: setting data property to null actually keeps null instead of removing all from existing data (closes #1051)
Tests: added new tests for ListCollection using an Array as the data source
DefaultFocusManager: fixed issue where hyperlinks in ScrollText wouldn't work because cancelling the mouseFocusChange event stopped the TextField from receiving focus (closes #1050)
Help: work in progress on the tweaked ScreenNavigator and the new StackScreenNavigator help files (references #1048)