Added license field.
Added license field.

LoganArnett/node-dv,LoganArnett/node-dv,sumedhghaisas/node-dv,LoganArnett/node-dv,sumedhghaisas/node-dv,LoganArnett/node-dv,sumedhghaisas/node-dv,sumedhghaisas/node-dv