Creating X10 API of spectral clustering.
Removed duplicated file.
Modified the arguments passed to ARPACK.
Removed an unused function.
Modified in order to get dist2d from Config.
Added license.
Added normalized cut calculation.
Merge branch 'develop' into HEAD
Change "sx10Test" to "STest" in SpectralClusteringTest.x10
Merge branch 'feature/spectralclustering' into develop