Issue #1754712 by TravisCarden, Bußmeyer, pingers: Fixed @return unknown_type() should be @return mixed.

Issue #1071818 by JeremyFrench, nod_, reglogge, anthbel, xjm, sun, NROTC_Webmaster, lliss, Cottser: Fixed Lazy-loading CSS fails in IE.

Issue #1287368 by TwoD, valthebald, xjm, sun: Fixed Drupal.settings.ajaxPageState.css gets overwritten.

Nate Lampton authored Oct 30, 2011 and catch committed Nov 01, 2011

Issue #22336 by quicksketch, scor, boombatower, and rfay. Move all core Drupal files under a core subdirectory.

Issue #561858 by effulgentsia, sun, rfay, Nick_vh, merlinofchaos, katbailey, dereine et al: documentation and tests for drupal_add_js() and drupal_add_css() with the AJAX framework.

- Patch #561858 by effulgentsia, sun, rfay, Nick_vh, merlinofchaos, katbailey, dereine, tstoeckler: drupal_add_js() and drupal_add_css() to work for AJAX requests too by adding lazy-load to AJAX framework.

#331951 by aspilicious, sun, jhodgdon, Morbus, et al: Figure out and apply coding standard for casting.

- Patch #645800 by katbailey, effulgentsia, rfay: ajax_deliver() ignores #ajax['method'] and incorrectly forces 'replaceWith' for simple AJAX callbacks, D6->D7 regression.

- Patch #684846 by effulgentsia, rfay, quicksketch, aspilicious: AJAX triggered by non-submit element fails if any elements are validated.