System Identifier problems in DOCTYPE
The system identifiers inserted in the DOCTYPE element of beta6 eml modules
created by Morpho are not always meaningful or correct. Some point to urls on
metacat, some just have a local file name which may or may not be available, and
in some cases, the SystemId string is not a valid URL due to the fact that the
catalog system was moved to inside of a jar file.
This does not create a problem for Morpho since it uses public identifiers, but
may be problematic for exported packages.