XWIKI-11176: Use jsTree to rewrite and improve the trees we currently have in XWiki
* Add support for specifying the tree source using a URL/path (in the tree macro)
XWIKI-11176: Use jsTree to rewrite and improve the trees we currently have in XWiki
* Add a 'documentTree' macro that can be used to display: the document index tree (space/page + parent/child), the document hierarchy (parent/child), the package tree (space/page) or the full entity tree.