Morpho

A user just reported mysterious problems attempting to save and reopen documents in Morpho. It appears the problem is that her prefix contains a period, impairing Morpho's ability to parse the document id.

• Create a new profile, choosing a prefix that contains a period (foo.bar)
• Create a new data package, and save locally
• Restart Morpho

The saved package doesn't appear in the Open Data Package window.

Also, .morpho/profiles/foo.bar/data looks like this:
`-- foo
`-- bar.3.1

Rather than this:
`-- foo.bar
`-- 3.1

Either Morpho needs to be smarter about parsing IDs, or if such a prefix is illegal, it shouldn't allow users to create one containing periods in the first place (and this should be documented).