gmap: set center and zoomlevel automatically (closes #2144255)
Instead of hardcoding the default zoomlevel and setting the center to
the average of all markers, let gmap compute them so all markers fit in
the map.
#! /bin/sh -e#if [ "$1" = configure ]; then if which install-docs >/dev/null 2>&1; then install-docs -i /usr/share/doc-base/cubicweb-doc fifi#DEBHELPER#exit 0