Issue #1153022 by lyricnz, Pasqualle: Fixed PHP Notice: Undefined index: content in template_preprocess_node().

Issue #1164120 by pillarsdotnet: Fixed Add reference to _user_mail_text() in the doxygen for user_mail_tokens() function.

Issue #1007830 by drunken monkey, Damien Tournoud, bfroehle: Fixed Nested transactions throw exceptions on ddl changes.

Issue #647964 by jergason, bfroehle, Damien Tournoud, corbacho, Pancho: Fixed Running cron does not check for available updates.

Issue #1137074 by plach, Jose Reyero: notices and wrong links on translation tab for unpublished nodes.

Issue #1096340 by plach, fietserwin, sun: Fixed Stale language types/negotation info after enabling/disabling modules.

Issue #1154820 by lyricnz, marcingy, Starminder: Fixed System Schema mismatch after upgrade D6 to D7.

Issue #1154806 by lyricnz, marcingy, Starminder: Fixed Comment Schema mismatch after upgrade D6 to D7.

- Patch #1017832 by benjifisher, droplet, aspilicious, tim.plunkett, johnv, Jeff Burnz: fieldset CSS for node forms needs to be more specific.

- Patch #1120412 by skwashd: comment_save() doesn't support additional columns added by hook_schema_alter().

- Patch #1038788 by wojtha, sign: drupal_find_theme_functions() removes all theme 'prefix_' occurences.