Use getMainOutput

Dependencies

• [2] PMNWRTGJ Add multiple output support
• [3] LBNVQXUB * Build the /build stuff in a separate controller.
• [4] HSVVEKTY * Start of a JSON API to get information about a specific build.

Change contents

• replacement in src/lib/Hydra/Controller/Build.pm at line 546
  [3.333]→[2.4064:4123](∅→∅)
  − my $out = $build->buildoutputs->find({name => "out"});
  [3.333]

  [2.4123]
  + my $out = getMainOutput($build);