#320024 by Dave Reid: Replace hardcoded drupal_required_modules() with required = TRUE in .info files.

#253569 by aaron, agentrickard, and Dave Reid: Add hook_modules_X to allow modules to react when other modules are enabled, disabled, installed, or uninstalled.

#242873 follow-up by pwolanin: Move new check_plain() check constants to bootstrap.inc so they're there in early bootstrap.

#319346: SA-2008-60 (#318706): blogapi_mt_set_post_categories() allows assigning arbitrary categories.

#305653 by Dave Reid, cdale, and snowball43: Fix bug where enabled themes get unmarked during update.php.

#318575 by jvandyk: Change 'remaining' to 'completed' in Batch API, to better reflect what's actually happening.

#313213 by maartenvg, Gábor Hojtsy: Add a 'title' attribute for permissions to allow for localization of permission names