Added disable_quickedit to Hooks
Modified build_meta_box to allow a callback to be passed via a 'callback' value.
Added $wrap argument, consolidated filters in build_field and added handling of 'build' callback option in field settings.
Added wrap value to build_fields call, reordered registration/output of custom settings, and revised add_page_to_menu workings.
Updated version number and added 1.3.0 entry to changelog
disable_quickedit > _disable_quickedit (forgot about that)