[geary] (22 commits) Created branch wip/composer-folks

[Michael Gratton <mjog src gnome org>]

The branch 'wip/composer-folks' was created.

Summary of new commits:

  0b734f7... Don't load all engine contacts on startup
  2ff2d24... Clean up ContactFlag API
  809f664... ContactStoreImpl unit tests
  cb8150c... Remove existing contact harvesting mechanism
  5ab35da... Clean up contact importance API
  bc64cd9... Provide a way to access actual args for an expected mock ca
  91caff4... Add support for uint args in expected calls in MockObject
  96cbb83... Ensure Geary.Contact real names are distinct from their add
  65ab379... Implement new contact harvester for the engine
  03b5fce... Pass email to a contact harvester instance when persisting 
  5e13dd0... Replace Db.PrepareDelegate with a subclass virtual function
  66a664f... Clean up ImapDB.Account ctor/open API a bit
  71cb7fc... Add Geary.ContactStore.search method, impementation and tes
  3007ac5... Do prefix-only searching in ContactStoreImpl to impove resu
  cc27bae... Convert composer email autocomplete to use search for match
  7a14f54... Remove now unused ContactListStoreCache class
  ef54509... Clean up context objects passed to ComposerWidget's constru
  7c4d711... Decouple Application.Contact from Geary.Contact
  f49f885... Add Application.ContactStore.search method
  6db466e... Convert ContactEntryCompletion to use app contacts
  dd9d066... Ensure Geary.ContactStoreImpl validates UTF-8 strings
  5a0c105... Composer contact autocomplete tweaks