Nolds v0.6.1

This version of nolds allows using numpy 2.0 by fixing a minor inconsistency in the calculation of the Lorenz system.

Nolds v0.6.0

This version of nolds is the last version that supports Python 2.7. It contains all improvements made on the main branch so far, which means all algorithms are correct to the best of my knowledge.

Starting from nolds 1.0, the project will only support Python 3.