remove trailing white-spaces from app/helpers/roles_helper.rb.
remove trailing white-spaces from app/helpers/search_helper.rb.
remove trailing white-spaces from app/controllers/issues_controller.rb.
remove trailing white-spaces from app/controllers/journals_controller.rb.
remove trailing white-spaces from app/helpers/news_helper.rb.
remove trailing white-spaces from app/models/version.rb.
remove trailing white-spaces from app/models/version_custom_field.rb.
remove trailing white-spaces from app/models/workflow.rb.
remove trailing white-spaces from app/models/journal_observer.rb.
remove trailing white-spaces from app/models/mail_handler.rb.
