[uicfg] fix autoform_section rtags initialization
1. when a relation is marked as inlined in the 'main' form type, we want
its opposite (eg when one the other side of the relation) to be
marked as hidden in the 'inlined' form type
2. when no section is specified for the 'inlined' form type, use the same
as in the 'main' form type
to do this properly, we need two initialization stages. The first one
to handle 1., the second to handle what was done before and 2.
We can't do this in a single stage because we've to know the bare
value of the "opposite" tag.
This directory contains extra libraries which are needed
to make cubicweb work.
The mx.DateTime python implementation is directly taken from
the mx.DateTime distribution. The only modification is the
strptime function which has been mocked using the standard
``datetime`` module. (as provided by the python2.5's stdlib)