The hierachical menu is based on the structure of the stories (permalink).

Skips initial stories or pages from menu.

permalink of the story shall match one of the entries in
NAVSTORIES_PATHS for the given language to be included in the menu.

- Using smarter loops
- Minor changes

TODO:
- p.permalink(lang) ->p.permalink()
- Usage of TranslatableSetting

Create menu structure navpath based on permalink without language
prefix, and links in menu including language.

But read config variables in a try...except in case a varible is missing.

The .lower() isn't needed.

It also handles if a top level page and a submenu, e.g.
 /nav.rst (top) and /nav/*.rst (sub)

It is easier to change how the menu should be generated.

navsties skips the lang path specified in TRANSLATIONS for the internal
processing (not for the links), but there was an error there.
permalink_nolang starts with /pages/... no matter the value of
TRANSLATIONS.

Version incr t. 1.0.1

Chris Warrick (Kwpolska) says:
.values is internal use and will break if someone assumes the usual
behaviour of using default value if language is untranslated to.

NavNode is a new class with parameters for a page (navpath, permalink
and title.

Make a hierarchical menu in navstories