Reset lastInstanceRead to null in prepareForUseImpl()
Merge branch 'master' of https://github.com/caseyvu/samoa into misc
Merge branch 'master' of https://github.com/caseyvu/samoa into misc
Merge branch 'misc' of https://github.com/caseyvu/samoa into amrules
Init Kappa array in evaluator with instance.numClasses() instead of classVotes.length