Fix build-queued plugin hook

Dependencies

• [2] LAJHRL6O Fix tests
• [3] PXTSKX4G Add buildQueued plugin hook
• [4] IMQRX4MP hydra-eval-jobs: Use JSON instead of XML
• [5] S6OISBQ3 * Mark the "current" builds in a jobset, i.e. those corresponding to
• [6] RXVJFQ5A Evaluator cleanups
• [7] N22GPKYT * Put info about logs / build products in the DB.
• [8] RFE6T5LG * Store jobset evaluations in the database explicitly. This includes
• [9] FTPCV25M Store aggregate members in the database
• [10] VU2OLHD2 Move most of AddBuilds to hydra-eval-jobset
• [*] S5PV6IIM * Represent jobs explicitly in the DB.
• [*] LZO3C2KI * Hack around those SQLite timeouts: just retry the transaction.
• [*] NS7SND6R hydra-evaluator: Send statistics to statsd

Change contents

• edit in src/script/hydra-eval-jobset at line 474
  [3.16911]→[2.0:150](∅→∅)
  − system("hydra-notify build-queued " . $build->id)

  − if defined $build && defined $buildMap->{$build->id} && $buildMap->{$build->id}->{new};
• edit in src/script/hydra-eval-jobset at line 640
  [12.5888]

  [13.1601]
  + my %buildMap;
• edit in src/script/hydra-eval-jobset at line 651
  [3.5628]→[3.4483:4505](∅→∅)
  − my %buildMap;
• edit in src/script/hydra-eval-jobset at line 739
  [14.1184]

  [14.1184]
  +

  + while (my ($id, $x) = each %buildMap) {

  + system("hydra-notify build-queued $id") if $x->{new};

  + }