Issue #935062 by klausi, sun, wamilton, ksenzee, oriol_e9g: Change role id to machine name.

core/includes/bootstrap.inc

core/modules/block/block.install

core/modules/field/modules/text/text.test

...filter/lib/Drupal/filter/Tests/FilterFormatAccessTest.php

.../modules/simpletest/lib/Drupal/simpletest/WebTestBase.php

core/modules/system/system.info

.../modules/system/tests/upgrade/drupal-7.roles.database.php

core/modules/system/tests/upgrade/upgrade.roles.test

core/modules/user/lib/Drupal/user/Tests/UserAdminTest.php

...odules/user/lib/Drupal/user/Tests/UserPermissionsTest.php

.../modules/user/lib/Drupal/user/Tests/UserRoleAdminTest.php

core/modules/user/user-rtl.css

core/modules/user/user.admin.inc

core/modules/user/user.css

core/modules/user/user.install

core/modules/user/user.module

core/modules/user/user.permissions.js

profiles/standard/standard.install