#50901 by chx: do not allow user login under maintenance mode, if the logged in user has no site config permission

#135329 follow up: rolling back some of the user password request form changes, so user names in email address format (eg. site_network module) will still work

#181125 follow up by beginner: book.js should have been removed earlier in #181125, was a commit mistake

#205334 by hass: if more then 5 languages are available, use a dropdown not a radio button list (usability)

#205075 report by ktabuer, patch by myself, testing by ktauber and Lynn: book block throws notice when used on non-book-node page (with a little bit of code cleanup)

#203582 by David_Rothstein: some core hook_access() implementations are not using the passed in account

#205199 by David_Rothstein: leftover links were not removed in the reindexing process properly (search module)

#199373 report by avskip, patch by myself, testing by keith.smith: forum node type was not re-added to the forum vocabulary when the module is re-enabled (after being disabled)

#203846 by pwolanin and jvandyk: PHP 4 does not allow omitting an object when it is passed by reference, so we need to live with dummy object passing with actions for object-less actions to support PHP 4

- Patch #204900 by webernet: code style fixes.  Likely my last patch of the year.  Fiew.  Thanks all, and see you on the other side.  :)

#204420 by webernet: do not show messages about status problems to those who will not be able to click and go to the reports

#203941 reported and tested by Takafumi, patch by myself: trigger assocations should be removed when deleting an advanced action

#194369 by lots of contributors: move default files directory to sites/default/files which can be created automatically on install, so no need to bug the user about it, making the install process easier

#152497 by bjaspan, with more docs from myself: user_external_login() was not updated to latest login process

Reported at http://groups.drupal.org/node/7843 by kkaefer: t() was used in install.php in place of st()

Reported at http://groups.drupal.org/node/7843 : language direction was not translated in the overview (it is in the form, so no new string for translators)

#197722 by catch, hwsong3i: remove 4.7 to 5.x updates; we only support direct updates from 5.x to 6.x

- Patch #174226 by keith.smith, pwolanin et al al -- and greatly simplified by me: added a copyright notice.