v1.4.0

Merge pull request #140 from Alex-Izquierdo/release-1-4-0

bump to 1.4.0

v1.3.8

bump 1.3.8 version (#129)

v1.3.7

Merge pull request #127 from Alex-Izquierdo/bump-1-3-7

bump version to 1.3.7

v1.3.6

bump version 1.3.6 (#124)