Container names were built using the service name. We didn't checked the
name and leave underscores inside.
This commit does:
- fix all service and rename containers (`container_name`)
- use `ContainerName` everywhere we need to get the container by name
See #106
UPX can compress binaries from 22Mo to 7Mo on Linux / Windows and 14Mo
on MacOS. Let's use it to reduce binary size.
I don't know why it doesn't work on FreeBSD.
