branch master updated (4b8b441 -> 3f81ca3)

[Ricardo Wurmus]

rekado pushed a change to branch master
in repository guix.

      from  4b8b441   services: vpn: Fix default tls-auth configuration.
       new  bb3b4b4   gnu: Add python-attrs.
       new  9074bac   gnu: Add python-constantly.
       new  fd8ff99   gnu: Add python-m2r.
       new  6414410   gnu: Add python-graphviz.
       new  96cb5ca   gnu: Add python-automat.
       new  0cd83b4   gnu: Add python-incremental.
       new  c1578ad   gnu: python-twisted: Update to 17.1.0.
       new  3f81ca3   gnu: alot: Update to 0.5.1.

The 8 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 gnu/packages/graphviz.scm |  32 +++++++++--
 gnu/packages/mail.scm     |  11 ++--
 gnu/packages/python.scm   | 138 ++++++++++++++++++++++++++++++++++++++++++++--
 3 files changed, 168 insertions(+), 13 deletions(-)