Can not delete bookmark post

Hi,

I found this bug, i tried to delete some post on my bookmark list, post deleted but when i refresh the page, the post still show up.

Here your code on cbxwpbookmark-public.js

var $objectid = $postdelete.data("id");

var data = {
    'action': 'cbx_delete_bookmark_post',
    'security': cbxwpbookmark.nonce,
    'postid': $objectid
};

$objectid is undefined, because of this:

<a class="cbxbookmark-delete-btn cbxbookmark-post-delete" href="#" data-object_id="33" data-object_type="story"><span></span></a>

It should be:

var $objectid = $postdelete.data("object_id");

And also on PHP code, i found these lines:

$object_id = intval($_POST['object_id']);

And var data should be:

var data = {
    'action': 'cbx_delete_bookmark_post',
    'security': cbxwpbookmark.nonce,
    'object_id': $objectid
};

Thank you for your awesome plugin.