Added a box_url for an external wheezy box

As github user can not (and should not :) ) access bigpoint's internal infrastructure and with that have no access to the box specified, we added another url for a publicly accessible box.
[FIX] Rubocop Compliance
Merge remote-tracking branch 'remotes/origin/next'

* remotes/origin/next:
  [FIX] Rubocop Compliance
  Added a box_url for an external wheezy box
increase version number to 0.1.156