obsolete setup removed
navigation bar for students enabled
- user info removed
- account and logout link moved
- student view (reached points) added
- ignore empty comments
- link for download-markings if there are markings, submissions or attachments
unnecessary line removed
adds Navigation.css
navigation elements updated
belongs to #117
comment removed
solves some problems with marking tool
version updated
adds the possibility to sort by exercise-type
fixes crash, if attribute doesn't exists
belongs to #114
crash fixed, unknown $uid
adds submissions and markings only if "hideFile" flag is not set
(*) replaced with (B) for exercises with bonus flag
adds calls to remove file types by exercise-id  and sheet-id
corrected exercise order
adds options for direct calls of  instruction() and commands()