branch master updated (9dae1488a4 -> 4b23fd7adb)

[guix-commits]

civodul pushed a change to branch master
in repository guix.

    from 9dae1488a4 gnu: muse-sequencer: Update to 4.2.1.
     new 80a135d64b channels: Autoload several modules.
     new ddc9d66f2b substitute: Retry nar download upon networking error.
     new fbcd9022c6 doc: ‘guix time-machine’ can travel to v0.16.0.
     new b0a37d8b1a doc: Cross-reference virtual build machines from ‘guix 
time-machine’.
     new ed03a0aa9b services: postgresql: Don't initdb when directory exists.
     new 6b138626e4 services: postgresql: Simplify execution of ‘initdb’.
     new 4b23fd7adb gnu: gerbil: Update to 0.18.1.

The 7 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:
 doc/guix.texi               |  18 +++---
 gnu/packages/scheme.scm     | 152 +++++++++++++++++++-------------------------
 gnu/services/databases.scm  |  65 ++++++++++---------
 guix/channels.scm           |  16 +++--
 guix/scripts/substitute.scm |   6 +-
 5 files changed, 119 insertions(+), 138 deletions(-)