psi-score 1.0.0

• Add Push-psi implementation
• Faster matrix factorization by solving $\mathbf{s}=\mathbf{A}^T \mathbf{s} + \mathbf{c}$
• Minor fixes

psi-score 0.2.0

• Add push-based algorithm for solving the $\psi$-score problem. Written by Maximilien Danisch and Anastasios Giovanidis
• Possibility to get the $\mathbf{p}_i$ and $\mathbf{q}_i$ vectors with Push and Power-NF

Version 0.1.0

First release of psi-score.