OpenLayers Cluster Strategy and reproject from 4326 to 3857 / 900913

HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/openlayers/2.13.1/OpenLayers.js"></script>
<link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/openlayers/2.13.1/theme/default/style.css">
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0-alpha1/jquery.js"></script>
<div id="header">OpenLayers Cluster Strategy and reproject from 4326 to 3857 / 900913</div>
<div id="map" class="map" />

CSS

html, body {
    width:100%;
    height:100%;
    margin: 0px !important;
}
#map {
    height:85%;
    width: 90%;
    margin: auto !important;
}
#header {
    margin: 10px 0px 10px 0px;
    text-align: center;
}

JavaScript

var geojsonObject = {
        "type": "FeatureCollection",
            "features": [{
            "type": "Feature",
                "geometry": {
                "type": "Point",
                    "coordinates": [-93.404419,
                44.926079]
            },
                "properties": {
                "storeNumber": 4,
                    "storeName": "x1",
                    "storeAddress": "xxx",
                    "city": "HOPKINS",
                    "state": "MN",
                    "postalCode": 55305,
                    "storeType": "SWAS",
                    "issueCount": 5
            }
        }, {
            "type": "Feature",
                "geometry": {
                "type": "Point",
                    "coordinates": [-93.042715,
                44.848022]
            },
                "properties": {
                "storeNumber": 6,
                    "storeName": "xx2",
                    "storeAddress": "xx1w",
                    "city": "INVER GROVE HEIGHTS",
                    "state": "MN",
                    "postalCode": 55077,
                    "storeType": "SWAS",
                    "issueCount": 12
            }
        }, {
            "type": "Feature",
                "geometry": {
                "type": "Point",
                    "coordinates": [-121.288006,
                38.752124]
            },
                "properties": {
                "storeNumber": 7,
                    "storeName": "xx2",
                    "storeAddress": "xx2w",
                    "city": "ROSEVILLE",
                    "state": "MN",
                    "postalCode": 55113,
                    "storeType": "SWAS",
                    "issueCount": 3
            }
        }, {
            "type": "Feature",
                "geometry": {
                "type": "Point",
                    "coordinates": [-93.277723,
                44.767742]
            },
                "properties": {
               ...