Make clear that the upgrader script does not update gitlab-shell
There are many cases where people end up with a broken update because they don't update gitlab-shell.
For example: https://twitter.com/hgomez/status/537902038907363330
\cc @sytses
There are many cases where people end up with a broken update because they don't update gitlab-shell.
For example: https://twitter.com/hgomez/status/537902038907363330
\cc @sytses