applied simple generics

EuclideanDistance/DoubleExtensions.cs

		/// <param name='point'>
		/// Point.
		/// </param>
		public static string ToPoint(this IEnumerable<double> point)
		public static string ToPoint<T>(this IEnumerable<T> point)
		{
			return string.Format("({0})", string.Join(",", point));
		}