Fix memory error (forgotten reference counter increase when creating new labels)
Fix memory error (forgotten reference counter increase when creating new labels)

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