This reverts commit f1a8bf13.

Issue #336483 by brianV, catch: Fixed Performance: SELECT MAX(comment_count()) FROM node_comment_statistics() does full table scan.

Issue #289504 by catch, mikeryan, moshe weitzman: Fixed user_delete() performance: index comment uid columns.

Issue #996236 by fago, sun, pillarsdotnet, xjm: Fixed drupal_flush_all_caches() does not clear entity info cache.

Issue #569076 by rocket_nova, wamilton, alonpeer: Test that taxonomy term page contains a link to parent terms in the breadcrumbs.

Issue #1415794 by Zen Master: Fixed node_access_test_form_node_form_alter() has wrong documentation header.

Issue #1409052 by mkadin: Fixed hook_menu() should state that auto-loaders should return FALSE to indicate nothing found and trigger a 404.

Issue #1372280 by sven.lauer: Document that field_info_field_by_id() may also be used for deleted fields.

Issue #1025286 by Tor Arne Thune, Devin Carlson, swentel: Fixed logo_upload() in form_set_error() instead of favicon_upload() in system.admin.inc.

Issue #1360416 by droplet, LSU_JBob: Fixed Document that the page_bottom() region is hidden from the blocks UI.

Issue #1280792 by julien, xjm, pingers, Niklas Fiekas: Fixed {trigger_assignments()}.hook has only 32 characters, is too short.

Issue #1110650 follow-up by grendzy, oriol_e9g, sun: Fixed comment-by-anonymous class never appears.

Issue #1371484 by catch, langworthy, makara, ArtistConk: Fixed Private properties in abstract class DrupalCacheArray.

Issue #1411592 by dadikof, Niklas Fiekas: Fixed func_get_args() can't be used as a function parameter before PHP 5.3.

- Patch #1346166 by Dave Reid: Improve performance of token_replace() if there are no tokens to replace.