master updated (31a398f -> 4db99f6)

[Clément Lassieur]

snape pushed a change to branch master.

      from  31a398f   database: Put database in /var/lib to avoid removal at 
each boot.
       new  b4d058f   database: Fix the builds limit issue.
       new  4db99f6   database: Merge Derivations into Builds table.


Summary of changes:
 Makefile.am              |   3 +-
 doc/cuirass.texi         |  55 +++-------
 src/cuirass/base.scm     |  25 +++--
 src/cuirass/database.scm | 278 +++++++++++++++++------------------------------
 src/schema.sql           |  28 ++---
 src/sql/upgrade-2.sql    |  49 +++++++++
 tests/database.scm       |  78 ++++---------
 tests/http.scm           |  20 +---
 8 files changed, 219 insertions(+), 317 deletions(-)
 create mode 100644 src/sql/upgrade-2.sql