Added portal framework.
Added portal framework.

  * added 'portal' in the -f option
  * added '-z, --portal-bundle' option that defaults to
    ~/Downloads/omni-bundle.zip for specifying the location
    of the omni bundle.

ahelsing/geni-tools,plantigrade/geni-tools,tcmitchell/geni-tools,plantigrade/geni-tools,tcmitchell/geni-tools,ahelsing/geni-tools