Made method non-static so it can contain overrideable methods, removed
unnecessary file path setting, and minor fixes
Added unit tests for kronecker product and power methods
NPE protection
Merge branch 'master' of ssh://dascgitolite@dasc-git.diamond.ac.uk/scisoft/scisoft-core.git
Added linear algebra functions and updated guide
Updated from old HDF5 tree methods
Fix rank check
Merge branch 'master' of ssh://dascgitolite@dasc-git.diamond.ac.uk/scisoft/scisoft-core.git