changes in test and commenting the files

README.rst

setup.py

xbob/boosting/core/boosting.py

xbob/boosting/core/trainers.py

xbob/boosting/features/local_feature.py

xbob/boosting/scripts/mnist_lbp.py

xbob/boosting/scripts/mnist_multi_lbp.py

xbob/boosting/tests/test_loss.py

xbob/boosting/tests/test_trainer.py