v1.1.0

• Besides the original model (balanced model) in v1.0, an additional model (imbalanced model) is provided in this version.
• Add imbalanced training and test sets.
• New option -sample_ratio in the training module enables users to train their models in balanced or imbalanced settings.
• Remove option -md in the prediction module.
• Update the function of option -m in the prediction module; users can specify which model (balanced/imbalanced) to choose for prediction.
• New option -sub enables users to see predictions from sub-models.