* Fixes some issues in the admin area where some older browsers (IE7,
in particular) may slow down, lag, or freeze.
* Fixes the use of multiple trackback URLs in a post.
Prevents improperly sized images from being uploaded as headers from
the customizer.
* Ensures proper error messages can be shown to PHP4 installs.
(WordPress requires PHP 5.2.4 or later.)
* Fixes handling of oEmbed providers that only return XML responses.
* Addresses pagination problems with some category permalink
structures.
* Adds more fields to be returned from the XML-RPC wp.getPost method.
* Avoids errors when updating automatically from very old versions of
WordPress (pre-3.0).
* Fixes problems with the visual editor when working with captions.
Tested on i386.
Ok merdely@
7b4badb3fd