'Groups'

[cycomachead]

• Collections aren't quite a group.
• teachers want groups as a proxy for classes.
• groups could be the basis of contracts, too?
• group types? ('individual'? / school or district / contract)
• groups can belong to other groups? So a teacher's groups all belong to a school group?
  • though perhaps we only allow 1 level of nesting?
• group role: none (member but no access) / viewer / editor