Fixed Checkstyle copyright header to 2007.
Fixed Checkstyle copyright header to 2007.



Former-commit-id: 6848508c11135300572bf0529639c82d23b227b2
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine