[R-pkgs] Amap new release

[Antoine]

A new major version of Amap package is available on CRAN.

For this major release, all clustering code has been rewritten in C++.

Amap implements several tools in the field of clustering and robust statistics.

New features are:
   * clustering possible in float precision (less memory needs)
   * new rank-based metric: Kendall distance, use for both matrix distance computation, K-means, and hierachical clustering.


Best.

	Antoine.