Update to v1.3.0

Due to the difference between numpy and matlab, in version 1.2.x, there are very slight differences on some metrics between the results of the matlab code and ours. The recent PR (#3) alleviated this problem. However, there are still very small differences on E-measure. The results in most papers are rounded off to three or four significant figures, so, there is no obvious difference between the new version and the version 1.2.x for them.