Fix bug report 3

Change the query in UserDAO.find by setting each search attribute to
lower-case to avoid case-sensitive search
Fix bug report 4

The up arrow gets shown when the trialForm's first attribute is false,
which is the case when sort is non zero. For 'Teststudienblatt' it was
set to one in the testdata. So correct the value to 0 in the testdata.
Merge remote-tracking branch 'origin/BugReport3'