Documentation
Remove ChecksumData object, exposed map of (itemId) -> (checksum)
Merge branch 'develop' of https://github.com/jhu-digital-manuscripts/rosa2 into develop
Rename 'ChecksumInfo' to 'SHA1Checksum' and fixed dependencies in archive-tool
Refactor tool with Apache commons-cli
Stub 'update' in tool.
BookDescription plus serializer simple implementation.
Checksum write + test.
Configure structured metadata tags
Write structured metadata to XML
ImageList serializer write. Surpressed output to console in tests.