branch master updated (fed5a68 -> c009bb5)

[Ricardo Wurmus]

rekado pushed a change to branch master
in repository guix.

      from  fed5a68   gnu: Add shotwell.
       new  5546114   build: Add cran-uri procedure.
       new  a52b625   import: cran-sxml->sexp: Use cran-uri in package 
expression.
       new  9cda362   gnu: Use cran-uri in source expressions.
       new  675c9f4   gnu: Add r-bh.
       new  256ccc9   gnu: Add r-evaluate.
       new  c5bf3ab   gnu: Add r-formatr.
       new  ad3f005   gnu: Add r-highr.
       new  acbb40f   gnu: Add r-mime.
       new  3f8ac35   gnu: Add r-markdown.
       new  ea3a809   gnu: Add r-yaml.
       new  213656b   gnu: Add r-knitr.
       new  4f0e848   gnu: Add r-microbenchmark.
       new  1cf1cbb   gnu: Add r-codetools.
       new  0661b4d   gnu: Add r-pryr.
       new  b668a95   gnu: Add r-memoise.
       new  834f7ff   gnu: Add r-crayon.
       new  5b9789a   gnu: Add r-testthat.
       new  ffd4b47   gnu: Add r-r6.
       new  2a3a8ae   gnu: Add r-dplyr.
       new  c009bb5   Update CRAN mirrors.

The 20 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/statistics.scm |  412 +++++++++++++++++++++++++++++++++++++++----
 guix/build-system/r.scm     |   12 ++-
 guix/download.scm           |    2 +-
 guix/import/cran.scm        |    2 +-
 4 files changed, 386 insertions(+), 42 deletions(-)