branch master updated (b0a6b1f -> 1e16e19)

[guix-commits]

civodul pushed a change to branch master
in repository guix.

    from b0a6b1f  gnu: mu: Update to 1.6.2.
     new fa81971  store: Add 'map/accumulate-builds' cutoff to address 
pathological cases.
     new 06c1143  gnu: dealii-openmpi: Add Trilinos dependency.
     new 75e117b  gnu: rocksdb: set TEST_TMPDIR for faster test i/o.
     new 7317785  etc/committer: Support custom commit messages.
     new 80fc776  etc/committer: Pass command-line arguments to main.
     new e6d0264  gnu: sendmail: Install executables to $prefix/sbin and 
$prefix/bin directories.
     new 224093f  gnu: Add task-spooler.
     new 1e16e19  gnu: python-libusb1: Update to 1.9.3.

The 8 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:
 etc/committer.scm.in             |  57 +++++++++++++--
 gnu/packages/databases.scm       |   9 +++
 gnu/packages/libusb.scm          |   6 +-
 gnu/packages/mail.scm            |  28 ++++++--
 gnu/packages/maths.scm           | 149 +++++++++++++++++++++++++++++++++++++++
 gnu/packages/task-runners.scm    |  64 +++++++++++++++++
 gnu/packages/version-control.scm |   2 +-
 guix/store.scm                   |  30 ++++++--
 8 files changed, 324 insertions(+), 21 deletions(-)