Update Pixel integration to work with masks/rois
Merge branch 'master' of ssh://dascgitolite@dasc-git.diamond.ac.uk/scisoft/scisoft-core.git
Nullify maskcache when new mask/roi added
Added cloneable interface where necessary
Corrected use of absolute getter
Added more explicit tests checks to prevent NPEs
Fixed constructor issues in polynomial class
Fixes some warnings