Show a LOCK icon on the page list when pages are locked for editing either by the current user or another user.

#596450 by Scott Reynolds: Provide an ajax command response to reset the modal to the loading state.

#424548: Add a warning about overridng pager settings with Views AJAX.

#592692 by johnskulski: use theme_links instead of theme(links) for dropdown because we do not actually want a theme to change this output.

#589342: Introduce page_manager_get_current_page() to get information about the current page manager page.

#558918: Collapsible can be set to remember state between page loads. Allow collapsible handle and content to be separated and not have to be divs.

#565808 by sirkitree: Replace /nojs/g instead of just "/nojs/" with ajax, allowing nojs to be the last item in a URL.

#558942 by Roi Danton: In wizard.inc, be sure to check cancel path if return path is not set, as noted in documentation.

Add a couple of support functions for ctools_set_page_token that are meant to be used by themes.
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