+=item Config-Item
+
+A config-item is one structure which keeps the informations provided in the
+configuration file. The array of children keeps one entry for each
+configuration option. Each such entry is another config-item structure, which
+may nest further if nested blocks are used.
+
+ {
+ key => key,
+ values => [ val1, val2, ... ],
+ children => [ { ... }, { ... }, ... ]
+ }
+