Rails4: replace deprecated Relation#update_all at User model

git-svn-id: http://svn.redmine.org/redmine/trunk@12544 e93f8b46-1217-0410-a6f0-8f06a7374b81
Rails4: replace deprecated find_all_by_* at WikiPageTest

git-svn-id: http://svn.redmine.org/redmine/trunk@12545 e93f8b46-1217-0410-a6f0-8f06a7374b81