Fixing copyright header.
Fixing copyright header.

dionjwa/pkgcloud,mdsummers/pkgcloud,pkgcloud/pkgcloud,apla/pkgcloud,songanbui/pkgcloud,Phanatic/pkgcloud,andrewsomething/pkgcloud,DonSchenck/pkgcloud,hacor/pkgcloud,Hopebaytech/pkgcloud,Phanatic/pkgcloud,bunglestink/pkgcloud,temka1234/pkgcloud,mcanthony/pkgcloud