/// <summary>
 /// Add a <see cref="ValueConverterConvention"/> to the registry
 /// </summary>
 public static void RegisterConvention(ValueConverterConvention convention)
 {
     if (null == convention)
     {
         throw new ArgumentNullException("convention");
     }
     Conventions.Add(convention);
 }
 /// <summary>
 /// Add a <see cref="ValueConverterConvention"/> to the registry
 /// </summary>
 public static void RegisterConvention(ValueConverterConvention convention)
 {
     if (null == convention) throw new ArgumentNullException("convention");
     Conventions.Add(convention);
 }