public void FetchRecentPictures(IManosContext ctx, string id)
{
if (string.IsNullOrEmpty (id))
ctx.Response.HandleEmptyJson ();
var list = store.GetImagesOfUserFromPic (id, 10);
var json = '[' + list.Select (e => '"' + e + '"').Aggregate ((e1, e2) => e1 + ',' + e2) + ']';
ctx.Response.HandleJson (json);
}