Use wp-admin/includes/ms.php in WP 3.0

[mattwiebe]

BP includes the deprecated in WP 3.0 wp-admin/includes/mu.php file for setting spammer status and account deletion. We should use ms.php instead. Currently get a fatal error when trying to delete a user under WP 3.0.

I've attached a patch to load whichever is appropriate.

[wpmuguru]

You should check the bp_core_is_multisite function first before hitting the file system.

Also, $wp_version can be used to determine whether it is 3.0 or not.

[mattwiebe]

Thanks for the feedback Ron.

Loading of ms.php/mu.php happens after a bp_core_is_multisite() check (the bp_core_delete account() function already checked it before) and I'm using $wp_version to check which file to load. I did away with the file_exists() calls because they were unnecessary once we check for the version.

[apeatling]

(In [3010]) Fixes #2373 props mattwiebe