Use the JSON module

Dependencies

• [2] AMFMXR52 Provide a command ‘hydra-init’ to initialise/upgrade the database
• [*] SAFVRDTK * Put Hydra's dependencies so that they can easily be installed in a

Change contents

• edit in deps.nix at line 25
  [2.385]

  [2.385]
  + perlPackages.JSON # FIXME: JSON::XS should work