Allow WP_Query to orderby post_type

[DeBAAT]

With the introduction of Custom Post Types, the need arose to filter and sort on the post_type.
Filtering is already included in WP_Query, orderby however is not.
This enhancement request suggest to include this option in the query.php file.
The attached patch file only adds 8 characters to support this enhancement.
When the patch is implemented, WP_Query supports:

set_query_var('orderby','type');

[DeBAAT]

Patch for query.php for Ticket #28214

[DeBAAT]

Support for testing the patch for this ticket is appreciated.

[wonderboymusic]

sure why not

[wonderboymusic]

In 28605:

Allow users to sort posts by type in WP_Query.

Props DeBAAT.
Fixes #28214.

[ramiy]

i updated the codex.