Item12655:Item12750: working on a 3.0 release

* fixed syntax error in jstree combponent (Foswiki:Main/DanieleGondoni)
* added =sort= paramteter to HIERARCHY macro
* sorting all categories by title now (was by order before)
* fixed infinite recursion on malformed category data 
* fixed hierarchy not being properly refreshed using the jstree component
* fixed jstree component's way of setting the category title for a new node 
* lots of docu improvements



git-svn-id: http://svn.foswiki.org/trunk@17386 0b4bb1d4-4e5a-0410-9cc4-b2b747904278