public FrmReleases()
{
InitializeComponent();
var config = JsonConvert.DeserializeObject <Config>(File.ReadAllText("config.json"));
_client = new VstsClient(config);
_async = new AsyncManager();
_async.AsyncWorkBegun += (x, y) => btnRefresh.Enabled = false;
_async.AsyncWorkComplete += (x, y) => btnRefresh.Enabled = true;
}