Currently, the runner name is taken from the docker container's
hostname.
This changes across restarts, causing the runner name to change across
restarts too.
This uses the host name to keep a consistent name.
We are no longer using Travis. As such, we should move away from a lot
of CI functionality located in a folder called travis-ci/. This change
renames the travis-ci/ directory to the more generic ci/.
To preserve backwards compatibility until all "consumers" have
transitioned, we add a symbolic link called travis-ci back. It will be
removed in the near term future.
Signed-off-by: Daniel Müller <deso@posteo.net>