Handle UTF-8 characters in eval error messages

Dependencies

• [2] GA6XIXAN * Show the input bindings in evaluation error messages.
• [3] SRBU2RAE Warn against multiple jobs with the same name
• [4] SHZLOM5M * eval-jobs -> hydra_eval_jobs.
• [5] 7ZYBTNJJ revert unmeant previous change which caused errors to stay, even after successful evaluation of jobs
• [6] FYO6NECE hydra
• [*] OOQ2D3KC * Refactoring: move fetchInput out of hydra_scheduler into a separate
• [*] 3XTHEUMP * Implemented the clone feature.
• [*] N22GPKYT * Put info about logs / build products in the DB.
• [*] POPU2ATH * hydra_scheduler: use eval-jobs.
• [*] JK2QWPH6

Change contents

• edit in src/lib/Hydra/Helper/AddBuilds.pm at line 5
  [9.1272]

  [9.1272]
  + use utf8;
• edit in src/lib/Hydra/Helper/AddBuilds.pm at line 294
  [3.303]

  [3.303]
  +

  + # Handle utf-8 characters in error messages. No idea why this works.

  + utf8::decode($_->{msg}) foreach @{$jobs->{error}};
• edit in src/script/hydra-evaluator at line 5
  [11.289]

  [12.473]
  + use utf8;
• replacement in src/script/hydra-evaluator at line 254
  [2.517]→[2.517:608](∅→∅)
  − $msg .= "at `" . $error->{location} . "' [$bindings]:\n" . $error->{msg} . "\n\n";
  [2.517]

  [4.4988]
  + $msg .=

  + ($error->{location} ne "" ? "in job ‘$error->{location}’" : "at top-level") .

  + " [$bindings]:\n" . $error->{msg} . "\n\n";