changes from 2.06 to 2.1 that are relevant for the DwCA conversion
--> change after creating abcd21.ktr from abcd2.ktr:

abcd21:FileURI		-->	abcd21:fileURI
abcd21:ProductURI	-->	abcd21:productURI
abcd21:Comment		-->	abcd21:comment
abcd21:Format 		-->	abcd21:fileFormat
abcd21:CreatedDate	-->	abcd21:createDate
abcd21:Creator		-->	abcd21:Creators/abcd21:creator