Rails4: replace deprecated find_all_by_* at IssueTest

git-svn-id: http://svn.redmine.org/redmine/trunk@12495 e93f8b46-1217-0410-a6f0-8f06a7374b81
Rails4: replace deprecated find_all_by_* at MessageTest

git-svn-id: http://svn.redmine.org/redmine/trunk@12496 e93f8b46-1217-0410-a6f0-8f06a7374b81
Rails4: replace deprecated find_all_by_* at ProjectTest

git-svn-id: http://svn.redmine.org/redmine/trunk@12497 e93f8b46-1217-0410-a6f0-8f06a7374b81