Issue #1040810 by Tor Arne Thune, jhodgdon: Fixed UPGRADE.txt describes erroneous step and should mention release notes.

Issue #1226796 by sun, catch, Damien Tournoud: Fixed Not equal operator '!=' is not supported by all databases, must be '<>'.

- Patch #955848 by anrikun, Kars-T, catch, chx: when editing an existing node with a link, the link itself is listed in 'Parent item'

- Patch #1116416 by Kars-T, Coornail: use 'Header set' instead of 'Header append' in .htaccess to avoid double encoding.

Issue #1059268 by Berdir: Fixed Files are lost when adding multiple files to multiple file fields at the same time.

- Patch #1116416 by Kars-T, Coornail: use 'Header set' instead of 'Header append' in .htaccess to avoid double encoding.

- Patch #1153122 by Mac_Weber, tim.plunkett: Fixed padding to make Save button in admin page more visible.

- Patch #952772 by oriol_e9g, mdupont, bleen18, idflood: theme_html_tag() optional value not really optional.

- Patch #1078646 by Nneka, droplet, Vincent Giersch, larowlan: incorrect link to the author's profile in topic column if topic has replies.

- Patch #1276746 by jessebeach: the title of the ui.mouse library in system.module is incorrectly set to 'jQuery UI: Droppable' instead of 'jQuery UI: Mouse'.

- Patch #999040 by Niklas Fiekas: corrected alternative control structure syntax in theme templates.

- Patch #1024328 by pillarsdotnet, droplet: re-use message-16-error.png icon for dblog severity levels higher than LOG_ERR.

- Patch #1257638 by michaellenahan, Bès: hook_menu() example should be changed to not suggest admin/config/foo as path.

- Patch #897650 by Garrett Albright, Damien Tournoud: DatabaseSchema_sqlite()::findTables() shouldn't find indexes.

- Patch #240828 by sun, xjm, David_Rothstein, yoroy: 'This form is outdated. Reload the page and try again' is incorrect and confuses users.