1. Assemble `web_info` by iterating over table cells parsed from Legistar GUI

2. Assemble terms by iterating over City Council terms from Legistar API,
   adding members to the `web_info` dict as we go

3. Assemble `members` by iterating over `terms`, storing names as keys, and
   Person objects, loaded with memberships for each City Council term, as values

4. Continue to assemble `members` by iterating over body offices for each
   committee, storing memberships on the appropriate Person objects (or minting
   new ones where they don't exist) as we go