Fixed: MY_Model crud, when using array_from_post() method if the value is an int(0) it see it as EMPTY/NULL and not return it.
Using !==(same value AND type) instead of !=
Added support for page parents
Added: show page parent title
Added: check if the $sortable variable isset, then include jquery UI and the sortable plugin
Added: page sorting view
Added: method to display nested pages
Added: sortable plugin
Added: save page order after sorting them using the page-order page
Added: CSS to make the sorting a little bit nicer
Updated: view files to make them more consistent