fix: map labels to {0, 1}
fix: deviance computation in BinomialDeviance was wrong (ignored cases where y == 0) - thanks to ChrisBeaumont for reporting this issue
raise ValueError if division through zero in LogOddsEstimator
add loss function for gradient boosting binomial deviance
pep8 and assert_equal instead of assert
correct docstring
Merge branch 'master' into gbrt-deviance-fix
use unique from sklearn backports (return_inverse)
Merge branch 'master' into gbrt-deviance-fix
Merge branch 'master' into gbrt-deviance-fix