v0.4.0

Visbrain

• Fixed installation #15
• Fixed compatibility with numpy and pip

Brain

• [NEW] mne_plot_source_estimation
• Fixed broken examples + templates/ folder

Sleep

• [NEW] Hypnogram is now exported as a .txt file with stage-duration encoding.
• [NEW] .xlsx and EDF+ are now supported for hypnogram
• Fixed units when loading with MNE
• Fixed warning in UTF-8 file loading
• Improved JSON saving for configuration file