New default behavior of navigation components is appropriate for use on large sites with many pages. On small sites it may be slightly slower, in which case you can set app_a_many_pages to false to get the old "fetch the entire page tree and reuse it in each navigation component as needed" behavior back. This worked quite well up to about 1,000 pages but became a serious problem on an 8,000-page site.
aPage::getAncestorsInfo now has an optional 'includeSelf' parameter which defaults to false for backwards compatibility.
aPage::getInfo provides a page info array about the current page. Useful when merging information from the Info methods with information about pages you already have as objects.
aPage::getAccordionInfo now has an optional final parameter, 'root', which specifies the slug of the root page of the accordion tree. The page on which getAccordionInfo is called should be a descendant of that page (or the root page itself).
