enforce use of environment variables when running as a service
CW_INSTANCES_DIR, CW_INSTANCES_DATA_DIR, CW_RUNTIME_DIR must be
positionned at the system level. This will ensure that cubicweb-ctl
commands issued on the computer will use the proper directories.
"""cube-specific forms/views/actions/components
: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
"""