[web/data] Update fullcalendar to version 1.6.4
Fixes compat with jquery 1.10 (closes #3445689)
#! /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