[predicates] allow multiple transition names in on_fire_transition (closes #3013720)
Also add a warning about the unimplemented from_state_name argument.
#! /bin/sh -e
#
if [ "$1" = remove -o "$1" = upgrade ]; then
if which install-docs >/dev/null 2>&1; then
install-docs -r cubicweb-doc
fi
fi
#DEBHELPER#
exit 0