This is not a security issue because ports 8000-8001 are not open to the
world; it should also drastically simplify the life of many people. See
for instance issues #30 and #34.
Also, we allow access to nginx on hostnames "localhost" and
"studio.localhost" for lms and cms, respectively. Again, this will
remove much of the confusion for many users.
Images are no longer built locally, Instead, they are downloaded from
docker hub. This completely changes config file organisation. In
particular, we no longer copy configuration files to the original docker
image.
