[form] fix validation error handling
* type when possible ValidationError raised by the edit controller
* don't rely on repository to check required field
* turn css class used for field error message to errorMsg to avoid
confusion with the error class added to input
* fix css when errors are added by the form renderer
* fix form renderer to add the error message
"""contains utility functions and some visual component to restrict results of
a search
:organization: Logilab
:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
"""
__docformat__ = "restructuredtext en"
from logilab.common.deprecation import moved
insert_attr_select_relation = moved('cubicweb.web.facet',
'insert_attr_select_relation')