master updated (5c5790a -> 46f73b6)

[Christopher Baines]

cbaines pushed a change to branch master.

    from 5c5790a  base: 'build-derivations&' closes the build output port only 
once.
     new 12def48  Support publishing build events
     new 267649c  Support publishing evaluation events
     new 46f73b6  Support returning build information by output.


Summary of changes:
 .gitignore                  |   1 +
 Makefile.am                 |   8 ++-
 bin/cuirass-send-events.in  |  80 ++++++++++++++++++++++++
 bin/cuirass.in              |   3 +
 doc/cuirass.texi            |   4 ++
 src/cuirass/database.scm    | 147 ++++++++++++++++++++++++++++++++++++++++----
 src/cuirass/http.scm        |  15 +++++
 src/cuirass/send-events.scm |  91 +++++++++++++++++++++++++++
 src/schema.sql              |   7 +++
 src/sql/upgrade-5.sql       |  15 +++++
 10 files changed, 356 insertions(+), 15 deletions(-)
 create mode 100644 bin/cuirass-send-events.in
 create mode 100644 src/cuirass/send-events.scm
 create mode 100644 src/sql/upgrade-5.sql