Makes DocGenerator ignore the additionals property of DGM if there's none
Makes DocGenerator ignore the additionals property of DGM if there's none

git-svn-id: a9340dfc471f9e3fec3bad18495f605bf57ea4d3@10613 a5544e8c-8a19-0410-ba12-f9af4593a198

kohsuke/youdebug