Grappelli support

[Mte90]

So I integrated this package with https://grappelliproject.com/
As doesn't use bootstrap some things are broken, this css fix it:

        td a {
            position: relative;
            top: 1px;
        }
        table.grp-table tbody tr td {
            font-size: 12px;
            font-weight: bold;
        }
        .field-title {
            min-width:200px;
        }
        .btn {
            background-color: #28728a;
            min-width:50px;
            padding: 0 !important;
        }
        .btn-danger {
            background-color: #e8c923;
            min-width:50px;
        }
        .cb-wrap.pull-right {
            inset: 0px !important;
        }

[askvortsov1]

Sorry for the late reply. just put this on the README (a bit too late, tbh), but I'm not using Django in any projects, and am open to someone else taking over maintenance of this package. I don't really have the time or need to push new features at the moment.