branch master updated (b4111af -> 2e3276e)

[Christopher Baines]

cbaines pushed a change to branch master
in repository data-service.

    from b4111af  Fix a window clause in package-outputs-for-branch
     new 6baef6a  Split out querying of build servers and substitute servers
     new e4cb3a8  Rename render-revision-derivation-outputs
     new 3cc14ae  Add a couple of options to 
select-derivation-outputs-in-revision
     new 6d3e866  Allow filtering by substitute availability for derivation 
outputs
     new c5a5684  Add a new package substitute availability page
     new 2e3276e  Tweak select-output-consistency-for-revision

The 6 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:
 .gitignore                                         |   1 +
 Makefile.am                                        |   2 +
 configure.ac                                       |   1 +
 guix-data-service/builds.scm                       |  27 --
 guix-data-service/model/derivation.scm             |  36 +++
 guix-data-service/model/nar.scm                    | 106 ++++++--
 guix-data-service/substitutes.scm                  |  83 ++++++
 guix-data-service/web/revision/controller.scm      |  73 ++++--
 guix-data-service/web/revision/html.scm            | 284 +++++++++++++++++++++
 ... guix-data-service-query-substitute-servers.in} |  16 +-
 10 files changed, 562 insertions(+), 67 deletions(-)
 create mode 100644 guix-data-service/substitutes.scm
 copy scripts/{guix-data-service-query-build-servers.in => 
guix-data-service-query-substitute-servers.in} (82%)