Template files are now directly loaded in the configurator container, so
that it is possible to run the configurator container directly, outside
of this project.
HTTPS is now fully supported. The ACTIVATE_HTTPS feature flag needs to
be set. Required domain names are LMS_HOST, preview.LMS_HOST and
CMS_HOST.
Close #46.
We no longer run the `configure` script on the host. Instead, we run a
container that generates the configuration files. This opens the way for
more complex configuration templates that would be written in jinja2.
More complex templates are required for feature flags, such as SSL,
XQUEUE, etc.
