* Update command added
* Ensure that the upgraded version is really greater
* Update command should not update prerelease
* Minor presentation changes
* Fix command generation in containers from docker-compose file
- Refactored service creation
* Place the full command to the "cmd" package
* Update cobra to v1.4.0
* Updated build and release creation
* Created an install script
* Add more doc
* Add some tests...
* Add a test directive in Makefile
- Added a message to explain to the user that it needs to build and push
images
- The Release Name string is now a constant ins source code, later we will be able to
change it to (for example) a template call
- SHA256 injected label (from docker-compose file content) is a bit long, SHA1 is shorter
- We now add compose command line and generation date in the Values file
- Code cleanup, refactorisation and enhancements
- More documentation in the source code
