Re: [LogiLogi-list] Db-based configuration, Elements, Modes, Stances & cleanup

Finally a commit again. It took much too long, but regardless of
several hurdles (among which on and a half day of ilness) it's there,
the database-based configuration, and the new functions needed in
Link, to allow menu's (tagged as /some_page/some_other/menu) to act 
as page-Elements.

The database-based configuration was needed to allow one to have 
concepts (like GlobalConfig.home_concept) as a configuration-
value in a neat way (and it's also good for scaling LogiLogi across
different servers using the same DB, but that's not the primary
reason...)

I've also made sure that logi-links (links with a =i<number>) can be
used as permalinks now. So if a logi is no longer tagged with a
certain concept (some_concept,s1=i10) it will be automatically
resolved to a concept that it is still tagged with (some_other,s1=i10).

Besides this I also added the functionality to Tagging to allow
one to simply create a new peer- or user-group by creating a logi
that's tagged with a new concept and that's also tagged with
peer_group,s1, or user_group,s1. This logi then also will function
as the (first) home-page for the peer-/user-group.

There is not much of a change yet to see at the front-end. But that
will change over the course of this weekend. I will be creating the
content for the link-drop-down, and the incoming links, context, and 
such.

Bruno I hope you want to integrate the new UI ? That way we can work 
in parallel, and do more in less time...

After getting the new version through SVN, you should run 
rake redo_dev_db.

Note that testing became quite a bit slower due to having to re-
instantiate the configuration-settings for each test (the
prettyprint-error is also still there)...

Wybo