added news widget and moved home page news to use it
bug fix for utf-8 encoded contents
getting only leaf and group node types in news selection query
Merge branch 'news-widget'
select instance css
ask user to select an instance when asked node belongs to more than one instance and cannot guess which one he's browsing
added cross course node navigation (one node can link to a node in a different course)
fixed toAray in cas of fieldset
user type switcher can edit student profile with all extended data
Merge branch 'master'