(Imported from Google Code)
This ticket depends on having the final ISM 7 Public Release schemas.
1) Reorganize properties in property file to more cleanly support 4.0.
2) Redo directory structure of 2.0 - 3.1 schemas for better consistency.
3) Add the 4.0 schemas and supporting imports to the /data/schemas/ directory.
4) Update the properties files with the new schemas.