r3.0.0

• constraints handling with an Augmented Lagrangian, see cma.fmin_con
• x0 and sigma0 cannot be a string anymore, but x0 may be a callable (a function)
• injections are excluded from negative covariance matrix updates addressing #124
• improved generic Logger, see cma.logger.Logger
• a wrapper as scikit optimizer, use import cma.wrapper
• plotting works now interactively also in a Jupyter notebook
• logger.plot(addcols=1) plots additionally correlation and precision matrices (experimental)
• new tolflatfitness termination option (replaces warnings/errors)
• new tolfunrel termination option (deactivated by default)
• "signals" file is active by default but ignored in verbose=-9 setting
• various other fixes and small improvements

available at PyPI.