#308434 by drewish, dopry, quicksketch, aaron, jhedstrom, and friends: Massive file.inc cleanup aaaaaand... tests! Yay! :D

- Patch #302763 by Dave Reid, Rob Loach: replace time() by ['REQUEST_TIME'] as per Rasmus' suggestion.  Removed drupal_referrer() for consistency.

- Patch #225450 by Crell, chx, bjaspan, catch, swentel, recidive et al: next generation database layer for Drupal 7.

- Patch #268063 by boombatower, chx, cwgordon7, Damien Tournoud: move includes/tests to simpletest/tests and provide hidden .info propery

- Patch #287877 by dmitrig01: rename drupal_rebuild_code_registry() to registry_rebuild() for consistency.

- Patch #252013 by Eaton, pwolanin, Susurrus et al: drupal_render() now printes #markup, not #value.

- Patch #270917 by catch, Bojhan, et al: renamed 'primary links' and 'secondary links' to 'main menu' and 'secondary menu' respectively.  Based on usability study conducted with the help of Bojhan.

- Patch #256152 by catch: added additional tests for the IP address blocking and added a small usability improvement.

- Patch #248436 by catch: fixed some bugs in the statistics module, wrote some tests, and made some minor usability improvments along the way.  That is _exactly_ how we like it.

- Patch #246298 by boombatower: added missing <label> to module names on uninstall page.  Improves consistency with the module install page.

- Patch #245504 by catch, David_Rothstein, Freso, et al: removed the throttle module from Drupal core.

- Patch #245115 by kkaefer, John Morahan, JohnAlbin et al: after a long discussion we've decided to make the concatenation operator consistent with the other operators.

  The access rules capability of user module has been stripped down to a
  simple method for blocking IP addresses. E-mail and username restrictions
  are now available in a contributed module. IP address range blocking is
  no longer supported and should be done at the server level.

  This patch is partly motiviated by the fact that at the usability testing,
  it frequently came up that users went to "access rules" when trying to
  configure their site settings.

- Patch #240387 by matt2000 et al: move 'content types' to 'site building' per the UMN usability study results.

- Patch #30984 by webchick, keith.smith, kkaefer, Crell et al: provide descriptions for permissions on the permission administration page.

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

#204411 by chx, slightly modified: heal a possible MySQL import error when the anonymous user becomes broken

#201641 by Ralf Stamm, Pancho: sort themes by their .info name, not their file name (just like modules)

#190729 by aufumy, Pasqualle, slightly modified: report incompatibility early, if the dependencies key is not an array in the .info file

#209584 by Rob Loach: 404/403 validation is also done in runtime so to allow more flexibility here, remove the submission time validation

#201540 follow up by zoo33: move jpeg quality validation to where it belongs, so it is only called if the current image toolkit requires it

#200777 by JirkaRybka: theme settings form relied on _POST[] and stored irrelevant formapi keys as theme settings