Function: Ajax handler for removing inactive widgets.

Function: Ajax handler for uploading attachments

Function: Ajax handler for internal linking.

Function: Ajax handler for menu locations save.

Function: Ajax handler for saving the meta box order.

Function: Ajax handler for menu quick searching.

Function: Ajax handler to retrieve a permalink.

Function: Ajax handler to retrieve a sample permalink.

Function: Ajax handler for Quick Edit saving a post from a list table.

Function: Ajax handler for hidden columns.