maven-enforcer-plugin moved from plugin managment to build plugins
maven-enforcer-plugin moved from plugin managment to build plugins

git-svn-id: d95c8f1468e72ac88b0e8aadd926028cc15263fe@1205 cbae1e92-611c-0410-ab7b-b19ac7dee622

mbezjak/vhdllab,mbezjak/vhdllab,mbezjak/vhdllab