mailu/core/postfix
Abel Alfonso Fírvida Donéstevez 39444c794e Install bash in alpine based images.
This fix https://github.com/Mailu/Mailu/issues/918

Bash shell is used by default in Kubernetes' dashboard console, which is very
useful for admins.
..
conf Move the Mailu Docker network to a fixed subnet.
Dockerfile Install bash in alpine based images.
start.py Change to mailustart functions