record must be saved for changes to propagate
render backrefs as foreignlist; move class-level properties to metaclass when practical
store base_class rather than field_instance
store base_class rather than field_instance
base_class defaults to none
method names in translators must match data type names
delete extraneous variable
fix __reversed__
add __eq__; add backref interface
Merge branch 'develop' of https://github.com/CenterForOpenScience/modular-odm into develop
fix __eq__