#177473 by chx, quicksketch, dvessel and merlinofchaos: make it possible for modules to add their own theme variable preprocess hooks and improve documentation on the different preprocess options

- Patch #180432 by hunmonk, sun, et al: make comment settings per node type.  This is a new feature that slipped in because it is required for the project module on drupal.org.

#163785 by Eaton, dvessel and quicksketch: theme .info files should be able to override core and module CSS files based on file basenames

- Patch #150245 by webchick, bjaspan, ralf, Arancaytar et al: move the .schema files into .install files to prevent mistakes.

#176503 by chx and bennybobw: hidden profile fields cannot be required and cannot be put on the registration form, so we needed warnings on the editing form to not let admins save forms set with these combinations.

#170514 by pwolanin: block and page cache should be cleaned when a menu item is changed (saved, deleted) or the menu router is rebuilt

#144634 follow up patch by chx: two caes, where the external link property should have been specified

#157752 by quicksketch: extend AHAH functionality to most types of form elements, without writing JavaScript. Also AHAH enable the blocks admin page. (part 2)

#157752 by quicksketch: extend AHAH functionality to most types of form elements, without writing JavaScript. Also AHAH enable the blocks admin page.

#180389 by merlinofchaos: add hook_theme_registry_alter() for devel module and friends to alter and get access to the theme registry

#180877 by Arancaytar: drupal_write_record() was not prefixing tables properly because PHP string parsing behavior

#178973 by merlinofchaos: proper style and script inheritance between themes more then two levels deep in the hierarchy

#180559 by hunmonk: do not try to display the comment addition form at th end of comments, if we are already on the page, so it is displayed anyway

#178892 by webchick: use drupal_get_private_key() instead of directly retrieving the drupal_private_key variable in update module, so we can ensure a proper private key is generated

#179695 by chx: only anonymous users should have permission to visit user/login, so this menu item is automatically hidden when a user is logged in

#180267 by hass: menu-collapsed-rtl.gif in Minnelli should be copied with the other images when color changes are made

#180265 by hass: menu-collapsed-rtl.gif in Garland should be copied with the other images when color changes are made

- Patch #169982 by moshe, eaton, bjaspan, nedjo, yched, et al: missing feature from schema API: load/save records based upon schema.

- Patch #144634 by chx: fixed critical bug that prevented language negotiation to work after/when drupal_goto() is called.

#176805 by dww: conditional linking to dblog pages in update.php, so if the module is not enabled, we don't get broken links

- Patch #179937 by quicksketch: made the table header magic more robust.  When a table disappears from the HTML, an error would otherwise be thrown.