[geary] (26 commits) Created branch mjog/user-plugins

[Michael Gratton <mjog src gnome org>]

The branch 'mjog/user-plugins' was created.

Summary of new commits:

  c394611... Application.Controller: Make plugin manager public
  655f1dc... Components.PreferencesWindow: Make application prop nullabl
  1143bb0... Application.PluginManager: Convert ctor to RAII
  f567777... Plugins: Use module name as plugin names
  627bfb7... Application.PluginManager: Only load builtins if in install
  0c526f6... Plugins: Support loading optional plugins
  c290787... Add UI to preferences window for managing optional plugins
  46e3ba7... Update releases notes to mention new plugin UI
  a88a67b... Application.NotificationContext: Make API docs more concise
  7ef6276... Plugin.Notification: Convert to an interface
  25b527f... Application.PluginManager: Add notion of trusted plugins
  45b519e... Geary.BaseObject: Use GObject ctor for ref'ing instances
  899c1aa... Minor translatable string update for consistency
  c50ab50... Application.ContactStore: Make ::close internal
  18df946... FolderList.Tree: Remove use of a NotificationContext object
  f72b135... Add stable public interfaces for plugins to use
  03331fd... Application.PluginManager: Add close method
  ee4bd11... Convert plugins to use isolated context model
  ff7c0f2... Application.Client: fix expected GVariant types for actions
  dbf9b75... Plugin.MessagingMenu: Rename plugin module name
  835eb04... Plugin.MessagingMenu: Remove trusted status
  154bb2d... Rework and clean up how plugin extensions work
  df7889d... Make plugin activation and deactivation async and throw err
  c72ce8d... Replace FolderList.Tree mail hooks with plugin
  1963438... Plugin.DesktopNotification: Update notifications
  4b53370... Plugin.NotificationBadge: Update plugin description