Version 0.3.2

• Refactorize unit tests
• Add "naive" and "top-k" methods in MapieClassifier
• Include J+aB method in regression tutorial
• Add MNIST example for classification
• Add cross-conformal for classification
• Add notebooks folder containing notebooks used for generating documentation tutorials
• Uniformize the use of matrix k_ and add an argument "ensemble" to method "predict" in regression.py
• Add replication of the Chen Xu's tutorial testing Jackknife+aB vs Jackknife+
• Add Jackknife+-after-Bootstrap documentation
• Improve scikit-learn pipelines compatibility