Fix eclipse import warning.
Fix eclipse import warning.

Imported minidom once at file level instead of three times inline.

plantigrade/geni-tools,ahelsing/geni-tools,GENI-NSF/gram,tcmitchell/geni-tools,tcmitchell/geni-tools,plantigrade/geni-tools,GENI-NSF/gram,GENI-NSF/gram,ahelsing/geni-tools