Make the app page multi-author capable

[slopjong]

At the moment the app page can only show one author of a project. DSpace however has more than one contributor, the page should list them all as suggested by @chron0.

    {
        "Title": "DSpace SpaceAPI-Overlay",
        "Description": "SpaceAPI Hackerspaces Overlay for DSpace",
        "Website": "https://apollo.open-resource.org/lab:dspace",
        "Github": "https://github.com/apollo-ng/dspace-client",
        "Gitorious": "",
        "Techniques": "Node.js, JavaScript",
        {
            "Author": [
            {
                "Name" : "alice-wl",
                "Twitter" : "@alice",
                "Website" : "http://www.notomorrow.de"
            },
            {
                "Name" : "chrono",
                "Website" : "https://apollo.open-resource.org"
            },
            {
                "Name" : "elf-pavlik",
                "Website" : "http://wwelves.org"
            },
            {
                "Name" : "iggy",
                "Website" : "https://apollo.open-resource.org"
            },
            {
                "Name" : "Niklas E. Cathor",
                "Email": "nilclass@riseup.net",
                "Github" : "https://github.com/nilclass"
            },
        ],
        "Organization": "Apollo-NG",
        "Organizationsite": "https://apollo.open-resource.org/",
        "Screenshot": "dspace-overlay.png"
    },