Updated tests; added version and .travis.yml.

.travis.yml

bob/learn/boosting/Boosting.py

bob/learn/boosting/StumpTrainer.py

bob/learn/boosting/__init__.py

bob/learn/boosting/data/mnist.tar.bz2

bob/learn/boosting/examples/mnist.py

bob/learn/boosting/include/bob.learn.boosting/config.h

bob/learn/boosting/loss.py

bob/learn/boosting/main.cpp

bob/learn/boosting/tests/test_boosting.py

bob/learn/boosting/tests/test_example.py

bob/learn/boosting/tests/test_loss_exp.py

bob/learn/boosting/tests/test_loss_jes.py

bob/learn/boosting/tests/test_loss_log.py

bob/learn/boosting/tests/test_machines.py

bob/learn/boosting/tests/test_trainer_lut.py

bob/learn/boosting/tests/test_trainer_stump.py

bob/learn/boosting/utils.py

bob/learn/boosting/version.cpp

setup.py