Added debug code to Survey (UIDocumentStateSavingError)
filled in missing core data attributes
Added better logging diagnostics
Fixed logic error - attributes should be optional by default
still trying to debug failure to save
Added additional diagnostic messages
Update todo list
Doh! - saving to the wrong location is bad
Update gps data for testing
Added Map to core data when saving  Adhoc observation
added descriptions to survey and protocol to aid debugging
clean up debug messages and todo list
Remembers selected map
fixed code to load and change surveys