ij-plugins Toolkit v.1.5.1

ij-plugins Toolkit v.1.5.1 at http://sourceforge.net/projects/ij-plugins/files/ij-plugins_toolkit/v.1.5.1/

Improved:
* K-means Clustering: better cluster initlaiization using k-means++ algorithm
* K-means Clustering: option to send cluster centers to a result table
* MetaImage Reader supports images with local data
* MetaImage Reader: better support for working with macros
* Dependent libraries updated to latest versions