getBuilds: clarify the names of evals vs. the query builder

Dependencies

• [2] OE5NED7F getEvals: order by the eval table's ID
• [3] PMNWRTGJ Add multiple output support
• [4] GLIPWYWL Move evaluation errors from evaluations to EvaluationErrors, a new table
• [5] U5ZWDBW3 Ensure that each eval is compared to the previous one from the same jobset
• [6] VH5ZABDR Add a page to show the latest evaluations for the entire server
• [*] 2GK5DOU7 * Downloading closures.

Change contents

• replacement in src/lib/Hydra/Helper/Nix.pm at line 227
  [3.897]→[3.897:946](∅→∅)
  − my ($self, $c, $evals, $offset, $rows) = @_;
  [3.897]

  [2.0]
  + my ($self, $c, $evals_query_builder, $offset, $rows) = @_;
• replacement in src/lib/Hydra/Helper/Nix.pm at line 229
  [2.1]→[2.1:44](∅→∅)
  − my $me = $evals->current_source_alias;
  [2.1]

  [3.946]
  + my $me = $evals_query_builder->current_source_alias;
• replacement in src/lib/Hydra/Helper/Nix.pm at line 231
  [3.947]→[3.947:979](∅→∅)
  − my @evals = $evals->search(
  [3.947]

  [3.979]
  + my @evals = $evals_query_builder->search(