Selected text in the editor is no longer automatically searched

[bradyvercher]

WordPress 3.9 switched dialogs and didn't add a corresponding event to know when the internal linking modal is opened.

• Changeset that caused the issue: https://core.trac.wordpress.org/changeset/27494
• Changeset that attempted to do something similar: https://core.trac.wordpress.org/changeset/25031
• Potential route without an event: http://stackoverflow.com/questions/1225102/jquery-event-to-trigger-action-when-a-div-is-made-visible/16462443#16462443

[bradyvercher]

Fixed in 2ddc3e6c with the release of WP 4.0.