Date Fields aren't Functional
        
          Summary: Date fields are non-functional, because they don't tell you enough about them to enter them reasonable.
Specifically:
- Create a new model
 
- Create a new property
 
- Choose date and time field
 
This field apparently takes milliseconds since epoch, but nothing makes that clear at all; ideally, there would be a date picker of some kind, but even a comment saying "This is in thousands of seconds" would have helped.
Justin: true, but I'm going to call this one "unimplemented feature".  Basically, only the back end of dates has been implemented, mostly so that I could write the 
_modTime Property for sorting.  There's been no UI work on Dates yet at all, and it's known that they aren't usable yet.  The medium-term plan is to expose joda-time style formatters for output, and calendars/spinners for input, but it's not terribly high priority.
 That said, I'll add an Issue for it.