be really strict on two-class labeling test, throw an error if label +1 or -1 or not found or labels!=+/-1 are found
be really strict on two-class labeling test, throw an error if label +1 or -1 or not found or labels!=+/-1 are found

besser82/shogun,lambday/shogun,lambday/shogun,sorig/shogun,karlnapf/shogun,Saurabh7/shogun,shogun-toolbox/shogun,Saurabh7/shogun,karlnapf/shogun,shogun-toolbox/shogun,Saurabh7/shogun,Saurabh7/shogun,lisitsyn/shogun,lisitsyn/shogun,Saurabh7/shogun,besser82/shogun,sorig/shogun,lambday/shogun,geektoni/shogun,karlnapf/shogun,geektoni/shogun,lisitsyn/shogun,Saurabh7/shogun,geektoni/shogun,besser82/shogun,lambday/shogun,shogun-toolbox/shogun,lisitsyn/shogun,karlnapf/shogun,shogun-toolbox/shogun,Saurabh7/shogun,karlnapf/shogun,sorig/shogun,shogun-toolbox/shogun,lambday/shogun,Saurabh7/shogun,lisitsyn/shogun,shogun-toolbox/shogun,lisitsyn/shogun,geektoni/shogun,Saurabh7/shogun,geektoni/shogun,sorig/shogun,besser82/shogun,karlnapf/shogun,besser82/shogun,sorig/shogun,lambday/shogun,sorig/shogun,besser82/shogun,geektoni/shogun