add active class at checked issue
translate tabs to spaces 4
refactor: Move SearchCondition to models.support
issue: Fix unnecessary notification about assignee.

"Assignee changed" notification has sent even if the assignee is not
changed, if the assignee is anonymous.
Merge pull request #386 from insanehong/hive refs/heads/issue/checked-row
Add SearchCondition.java missed at 76b53ce.