Remove rubygems dep.
Remove rubygems dep.

synthesist/panoptimon,bdha/panoptimon,synthesist/panoptimon,ewilhelm/panoptimon,ewilhelm/panoptimon,ewilhelm/panoptimon,bdha/panoptimon,synthesist/panoptimon,ewilhelm/panoptimon,bdha/panoptimon,synthesist/panoptimon,bdha/panoptimon