Function: Determine if TinyMCE is available.

Function: Old callback for tag link tooltips.

Function: Scale down an image to fit a particular size and save a new copy of the image.

Function: Remove image header support.

Function: Add callbacks for background image display.

Function: Remove custom background support.

Function: Retrieve theme data from parsed theme file.

Function: Alias of update_post_cache().

Function: Will clean the page in the cache.