Fix CrossValidation.
Fix CrossValidation.

besser82/shogun,besser82/shogun,besser82/shogun,geektoni/shogun,lambday/shogun,lisitsyn/shogun,lambday/shogun,karlnapf/shogun,geektoni/shogun,lisitsyn/shogun,besser82/shogun,besser82/shogun,besser82/shogun,lisitsyn/shogun,shogun-toolbox/shogun,karlnapf/shogun,shogun-toolbox/shogun,karlnapf/shogun,geektoni/shogun,shogun-toolbox/shogun,shogun-toolbox/shogun,lambday/shogun,karlnapf/shogun,karlnapf/shogun,lisitsyn/shogun,shogun-toolbox/shogun,geektoni/shogun,lisitsyn/shogun,lambday/shogun,lambday/shogun,lisitsyn/shogun,geektoni/shogun,lambday/shogun,karlnapf/shogun,geektoni/shogun,shogun-toolbox/shogun