#245990 follow up by Damien Tournoud, David_Rothstein, pwolanin: Move back to an internal URL check for HTTP request checking and make the request checking less intrusive on what requests can be accomplished

#245990 by Dave Reid, chx, dww: Look for the www.example.com page when a HTTP request seems to fail. Looking for the local page caused problems for people with interactive authentication, redirects, hosting added JavaScript code, and so on.

#226728 by chx: (performance) temporary cache table entries were not flushed, causing cache_menu and cache_form to grow big

 - include Drupal 5.7 changelog
 - correct jQuery version number
 - error level fix for RC
 - version numbers aligned

#214513 by Lynn: break was missing in system_send_email_action(), causing the action code to fall over to a different context (critical)

#215858 by pwolanin: localized menu options were saved into the database, avoid this by using different variable names / array keys

#105405 by chx, Pancho: (regression) remove web server version checking; it is not in Drupal 5; Apache 1.3 is surpassed for a long time now

#210219 by htalvitie, yched: initialize block caching properties properly on install (and update bugos RC2 sites as well)

#204411 by catch: elevate MySQL requirements to 4.1.1 (the first production MySQL 4.1.x was 4.1.5 anyway)