[geary] (40 commits) ...Merge branch 'wip/714876-goa-support'. Fixes Bug 714876.

[Michael Gratton <mjog src gnome org>]

Summary of changes:

  456d3e9... Fix search loading spinner never disappearing when autosele (*)
  1370ffb... Miscellaneous whitespace changes. (*)
  5ee1ac8... AccountInformation: separate out configuration (*)
  cd3cb4c... Introduce ServiceInformation classes (*)
  c08ab44... Port AccountInformation over to ServiceInformation (*)
  2ab6b38... Minor cleanup. (*)
  ad5ce6b... ServiceInformation: differentiate between auth methods and  (*)
  fbb6ceb... ServiceInformation: document all properties of this class (*)
  9eecc90... Move account loading, saving and deleting client side (*)
  04de9e0... Move LocalServiceInformation client side (*)
  c024ca8... Update internal VAPI kludge to work with newer version of M (*)
  f290786... Ensure engine tests are re-built when the engine changes. (*)
  7e089dd... Merge branch 'master' into wip/768975-service-info (*)
  9f3ec5b... Update unit tests to work with ServiceInfo API changes. (*)
  48ee9a0... Clean up po/POFILES.in (*)
  bcb7d6a... Remove stdout-based debug logging. (*)
  eb3e56c... Fix a critical warning on shutdown. (*)
  253719e... Make AccountManager an instance property of the controller. (*)
  602fc53... Make loading accounts more robust in the face of config err (*)
  24453ae... Ensure account info is saved when special folder config cha (*)
  d11dc07... Ensure accounts are deleted from disk when they are deleted (*)
  65bbf5b... Minor code cleanup. (*)
  9a05c25... Tidy up account loading from disk. (*)
  0d3f10f... Clean up user directory management. (*)
  ebf4999... Make KeyFile arg mandatory when loading/saving service info (*)
  a50de19... Clean up AccountInformation a bit. (*)
  17644ac... Fix account deletion, ensure any problems doing so are repo
  8539ef1... Make EngineTest a bit more robust.
  1bfdfde... Fix account deletion, ensure any problems doing so are repo (*)
  91e85a6... Make EngineTest a bit more robust. (*)
  4fdeb9d... Ensure AccountInformation objects always have valid IMAP/SM (*)
  ad9907a... Remove all account uses of app and engine singletons, app b (*)
  f45357a... Move Geary.CredentialsProvider to client, since it's client (*)
  4e0950f... Introduce a ConfigFile class to improve config management. (*)
  5108a21... Implement GOA support for password-based accounts
  fbc6671... Fix up GOA branch to build with meson.
  4b5aad8... Implement adding, updating and removing GOA accounts dynami
  e6891f5... Clean up Engine's account added/removed signals.
  c29c8ba... Merge branch 'wip/768975-service-info'. Fixes Bug 768975.
  25e2172... Merge branch 'wip/714876-goa-support'. Fixes Bug 714876.

(*) This commit already existed in another branch; no separate mail sent