Merged r11854 from trunk (#13783).
Role based custom queries (#1019).
gender neutral source comment at test/unit/journal_test.rb
gender neutral source comment at test/unit/issue_test.rb
gender neutral source comment at test/integration/account_test.rb
gender neutral source comment at lib/tasks/migrate_from_trac.rake
gender neutral source comment at app/models/user.rb
gender neutral source comment at app/models/mailer.rb
gender neutral source comment at app/controllers/projects_controller.rb
remove trailing white-space from test/unit/issue_test.rb
