close #472361: omit password and bytes attributes in allowed mass-mailing keys by fixing default implementation for allowed_massmail_keys() in the Emailable pluggable mixin (cw.common.mixins). Added test (in entities.test though), also fix CWUserTC classes conflicts in the test module.

#! /bin/sh -e

if [ -x "/etc/init.d/cubicweb-ctl" ]; then
    invoke-rc.d cubicweb-ctl restart || true
fi
 
 
#DEBHELPER#
 
exit 0