/// <summary>
/// Removes the specified user.
/// </summary>
/// <param name="user">The user.</param>
public void Remove(User user)
{
List.Remove( user );
}
/// <summary>
/// Adds the specified user.
/// </summary>
/// <param name="user">The user.</param>
public void Add(User user)
{
List.Add( user );
}