Simplified tree menu

Simplified Treemenu.

Files:
design/standard/templates/simplified_treemenu/
    ./simplified_treemenu.tpl
    ./show_simplified_menu.tpl

Simplified treemenu based on ContentStructure menu.
(see desing/standard/templates/contentstructuremenu/)

To use simplified treemenu, you have to insert appropriate include
simplified_treemenu.tpl file in your template. For example:

    {*include uri='design:simplified_treemenu/simplified_treemenu.tpl'*}

And set up appropriate classes as chapter classes in contentstructuremenu.ini
file, using ChapterClasses array. For example:

ChapterClasses[]
ChapterClasses[]=chapter
ChapterClasses[]=lightTOC
ChapterClasses[]=folder

The node of chapter class type will be opened as list of first-level
children, using a simplified treemenu. Any node of other types will be opened
as subtree of first found parent node of chapter class type.