v0.2.0

This version makes it easier to execute the container by providing an entrypoint.
The size of the container was also drastically reduced to ensure that it's easy and fast to use the project.

Total issues resolved: 3

• 5: Use Travis-CI instead of Circle-CI thanks to @lcobucci
• 6: Improve docker image thanks to @lcobucci
• 7: Fix shared volume syntax thanks to @lcobucci