Merge branch 'master' of github.com:spartan-array/spartan
Merge pull request #114 from MaggieQi/master

fix some codes in the tests (cholesky and conj_gradient)
record labels of each point in kmeans
fix indentation
Merge pull request #116 from EasonLiao/kmeans

record labels of each point in kmeans
Merge branch 'master' of github.com:spartan-array/spartan
fix lanczos solver for symmetric matrix
fix distarray dot numpy array