Release 0.3.1 prep (#162)

* Bump deps and package version. Rebuild

* Update chai

Merge pull request #157 from iden3/feat/bump-version

Bump to 0.3.0

0.2.63

0.2.62

0.2.60

0.2.59

0.2.58

0.2.57

0.2.56

0.2.55