Revert "beginnings of the hash table"

This reverts commit 5e5b6f0da12efc0dc22053c1d5b5644a06f5c3ac.
Revert "More debugging code, fixed a logic error in the destructors, and added the PeopleBook destructor."

This reverts commit efe79aeb01dd4afc4178fe6007c01866909a3120.