branch master updated (e4d4d11 -> 37538c5)

[Ricardo Wurmus]

rekado pushed a change to branch master
in repository maintenance.

    from e4d4d11  hydra/berlin: Add prometheus-node-exporter-service-type.
     new 3d49be5  hydra/berlin: Do not use tabs.
     new 37538c5  hydra/berlin: Add mumi/devel.

The 2 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 hydra/berlin.scm | 33 ++++++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)