Separated n_points from n_jobs in BayesSearchCV.

Dimensions now support boolean np.arrays.

matplotlib is now an optional requirement (install with pip install 'scikit-optimize[plots]')

Single element dimension definition, which can be used to fix the value of a dimension during optimization.

total_iterations property of BayesSearchCV that counts total iterations needed to explore all subspaces.

Add iteration event handler for BayesSearchCV, useful for early stopping inside BayesSearchCV search loop.

added utils.use_named_args decorator to help with unpacking named dimensions when calling an objective function.

Removed redundant estimator fitting inside BayesSearchCV.

Fixed the log10 transform for Real dimensions that would lead to values being out of bounds.