4.7.2-2alvistack3

Major Changes

• Upgrade minimal Ansible support to 2.9.0
• Upgrade Travis CI test as Ubuntu Bionic based
• Default with Python 3
• Hotfix for en_US.utf8 locale
• Allow the container to be stated with --user
• Simplify parameters combination with FISHEYE_VERSION
• Prepend executable if command starts with an option
• Improve ENTRYPOINT and CMD