[geary] (14 commits) Created branch mjog/composer-context-loading-fixes

[Michael Gratton <mjog src gnome org>]

The branch 'mjog/composer-context-loading-fixes' was created.

Summary of new commits:

  4cb27b3... test: Break out engine mock objects into their own name-spa
  abf10e5... build: Reduce verbosity of meson vars by removing `geary_` 
  bbb24ca... build: Generate client internal VAPI and build client tests
  8e503e8... Application.AccountInterface: New interface for accessing a
  a28b102... Geary.RFC822.MessageIDList: Update append methods
  4881869... Geary.RFC822.MailboxAddresses: Update equality semantics
  e35decb... Geary.RFC822.MessageIDList: Update append methods.
  82968ad... Geary.RFC822.MessageIDList: Support merging message id list
  a472c9e... Trivial code formatting fixup
  37d904b... Composer.ApplicationInterface: New composer app interface
  a5eb6dd... Composer.WebView: Rework HTML consts so that IDs have inter
  92833b9... Composer.Widget: Rename `get_composed_email` to `to_compose
  8c0f547... Composer.Widget: Rework context email loading
  48e16c8... Composer.Widget: Handle non-Geary HTML and plain text draft