[gnome-photos] (9 commits) Non-fast-forward update to branch wip/rishi/collection

[Debarshi Ray <debarshir src gnome org>]

The branch 'wip/rishi/collection' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  c45b764... application: Hook up importing to GActions
  9a44690... debug: Add a debug flag to track changes to the BaseManager
  7248e6d... base-manager, item-manager: Log additions and removals
  8977a90... embed, source-manager: Show notifications for mounts presen
  2cf6966... Revert "embed, source-manager: Show notifications for mount
  ec7cd1b... source-manager: Track GMounts representing USB storage & PT
  42854c6... Add a new mode for importing items from an attached device

Commits added to the branch:

  61e721f... source-manager: Split out the code to notify about sources (*)
  a402b9d... application: Hook up importing to GActions (*)
  cae1543... selection-toolbar: Add an import button (*)
  0e171a6... Add a new mode for importing items from an attached device (*)
  8cb626a... source-manager: Track GMounts representing USB storage & PT (*)
  bc23a5a... debug: Add a debug flag to track changes to the BaseManager
  d6eea2f... base-manager, item-manager: Log additions and removals
  8316fa5... embed, source-manager: Show notifications for mounts presen
  256e4d4... Revert "embed, source-manager: Show notifications for mount

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