formatting consistency (tabs vs space)

git-svn-id: https://source.sakaiproject.org/svn/assignment/trunk@314046 66ffb92e-73f9-0310-93c1-f5514f145a0a
fix anonymous assignment ID leaks in assignment list by student and grade report UIs

git-svn-id: https://source.sakaiproject.org/svn/assignment/trunk@314049 66ffb92e-73f9-0310-93c1-f5514f145a0a