branch master updated (6f89066 -> 1050070)

[Christopher Baines]

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

    from 6f89066  Support comparing revision system test derivations
     new b84014d  Remove some left over debugging
     new b4bb92c  Fix a copy paste error in 
system-test-derivations-differences-data
     new 1050070  Implement compare by datetime for system test derivations

The 3 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:
 guix-data-service/comparison.scm             |   8 +-
 guix-data-service/web/compare/controller.scm | 111 +++++++++++++++++++++++++++
 guix-data-service/web/compare/html.scm       | 101 +++++++++++++++---------
 3 files changed, 175 insertions(+), 45 deletions(-)