Michael Gratton authored Jun 07, 2019 and Michael Gratton committed Jun 13, 2019

Remove contact harvesting from DB version 005 (version 0.1.1), allowing
the implementation of both ContactStoreImpl and ImapDB.Database to be
cleaned up. Remove contact collection from ImapDB.Folder, reducing the
numer of Gee objects created when creating/merging messages. Finally,
remove the MessageAddresses object now that it is unused.