adjusted the documation for the decimation tutorial so that the priority module is correctly initialized
adjusted the documation for the decimation tutorial so that the priority module is correctly initialized

refs #1580

git-svn-id: b66b41e514ff40863ef1aa95df2dbf63dd8d6be1@828 fdac6126-5c0c-442c-9429-916003d36597

ColinGilbert/noobwerkz-engine,ColinGilbert/noobwerkz-engine,ColinGilbert/noobwerkz-engine,ColinGilbert/noobwerkz-engine,ColinGilbert/noobwerkz-engine,ColinGilbert/noobwerkz-engine,ColinGilbert/noobwerkz-engine,ColinGilbert/noobwerkz-engine