#517814 by jmstacey, justinrandell, pwolanin, drewish, Jody Lynn, aaron, dopry, and c960657: Converted File API to stream wrappers, for enhanced private/public file handling, and the ability to reference other storage mechanisms such as s3:// and flicker://.

#544418 by merlinofchaos, sun, drewish, quicksketch, et al: Integrate CTools AJAX framework with Drupal to extend (and replace) existing ahah framework. Everything about AJAX/AHAH is more betterer now.

- Patch #370240 by Josh Waihi, stuzza, mfb, Arancaytar: PDO should quote index names in table declarations.

- Patch #340283 by boombatower, dmitrig01 et al: abstract the simpletest broswer in its own class/object.

#370454 follow-up by chx: Enhance comments to page cache simplification patch, and add in missing settings.default.php hunk.

#296324 by R.Muilwijk, kscheirer, and pamelad: Fixed TestingParty08: url() for internal urls need a thorough test.

- Patch #476290 by tylor, evlis2, bohjan, Psicomante et al: add path alias to taxonomy term edit page. Yay.

#362972 by tic2000 and stewsnooze: Have nofollow filter remove 'rel' attributes instead of just adding rel='nofollow'.

#519046 by catch, pwolanin: Fix how toolbar_get_menu_tree() determines menu to remove unneeded calls to _menu_check_access().