Morpho

We need to implement a feature that allows the import of EML documents and
tabular data associated with these documents. The import step would include
validation to ensure that the document is a valid EML document. The docid of the
imported document would be compared to the docids of local data packages. If a
similar docid is found, Morpho would ask whether the user wants to create a
revision of the existing dp or create a new dp. If no similar docid is found,
Morpho would automatically create a new dp (with a new docid).

This import feature would allow importing documents that have been created by
the current Export feature of Morpho. Currently, there is not a straightforward
way of opening in Morpho a data package created by the Export command (see bug
1793). When using the Export command, the document created should be saved in a
place where it will easily be retrieved when using the import feature.

On top of allowing the import of existing EML documents, the import feature
would allow users to have a "template" dp from which they would create new dps
that usually differ only slighty in their format. This would lessen the burden
of creating new dps from scratch.