Add in missing needed join

Dependencies

• [2] SHIENRAL Clean up root controller
• [3] EFWN7JBV * Added a status page that shows all the currently executing build steps.
• [4] LZVO64YG Merge in the first bits of the API work
• [*] J5UVLXOK * Start of a basic Catalyst web interface.

Change contents

• replacement in src/lib/Hydra/Controller/Root.pm at line 100
  [3.22493]→[2.151:193](∅→∅)
  − { order_by => [ 'machine' ] }
  [3.22493]

  [3.23079]
  + { order_by => [ 'machine' ], join => [ 'build' ] }