web/web_timeline/views/web_timeline.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- vim:fdn=3:
-->
<openerp>
    <data>
        <template id="assets_backend" name="web_calendar assets" inherit_id="web.assets_backend">
            <xpath expr="." position="inside">
                <link rel="stylesheet" href="/web_timeline/static/lib/vis/vis.css"/>
                <link rel="stylesheet" href="/web_timeline/static/src/css/web_timeline.css"/>

                <script type="text/javascript" src="/web_timeline/static/lib/vis/vis.js"></script>
                <script type="text/javascript" src="/web_timeline/static/src/js/web_timeline.js"></script>
            </xpath>
        </template>
    </data>
</openerp>