[gnome-todo] (27 commits) Non-fast-forward update to branch wip/gbsneto/subtasks

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

The branch 'wip/gbsneto/subtasks' 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:

  12cec1f... task: add subtask support
  58205eb... provider-eds: remove task list from internal storage
  8fe3e08... task-list: proccess subtasks
  4c8043d... task-row: simplify xml file
  caef5fe... task-row: implement subtasks with DnD
  ed8da62... task: add ::is_subtask() API
  efb3d66... task-list: emit ::list-changed whenever a task changes
  2357967... task-list-view: sort listbox when list changes
  af558ce... task: add ::depth property and API
  80102da... task: consider subtask tree when sorting
  bd8764d... task-row: forbid making a parent task a subtask of a subtas
  a1d8a87... dnd-row: introduce GtdDndRow
  aa46f0b... task-list, task-list-view: manage drag and drop with GtdDnd
  17f6bbe... task-row: make better dnd icons
  3183dc3... dnd-row: improve the behavior when moving DnD
  20833d4... dnd-row: remove unused API
  4a5fc0e... task-list-view: delegate DnD to GtdDndRow

Commits added to the branch:

  744b4b6... edit-pane: lower indentation with early return (*)
  e201486... edit-pane: save task after editing (*)
  9232197... edit-pane: save loaded task on quit (*)
  44a6a47... edit-pane: check if binding is still valid (*)
  5f4590a... task: add subtask support
  e65a1c9... provider-eds: remove task list from internal storage
  d4b9469... task-list: proccess subtasks
  0b7ca7a... task-row: simplify xml file
  783840f... task-row: implement subtasks with DnD
  cd5ef0d... task: add ::is_subtask() API
  34a8080... task-list: emit ::list-changed whenever a task changes
  9cbe209... task-list-view: sort listbox when list changes
  d228144... task: add ::depth property and API
  5f19ff2... task: consider subtask tree when sorting
  c3fd458... task-row: forbid making a parent task a subtask of a subtas
  2757028... dnd-row: introduce GtdDndRow
  9360e48... task-list, task-list-view: manage drag and drop with GtdDnd
  0f3faab... task-row: make better dnd icons
  9fa840e... dnd-row: improve the behavior when moving DnD
  f8ff0dd... dnd-row: remove unused API
  222a14a... task-list-view: delegate DnD to GtdDndRow
  d4f4b79... theme: fine tune the Drag n' Drop row
  77c5461... task-list-view: consider subtasks when removing a task
  09b4748... task: fix typo
  17ae4b1... dnd-row: unset row above when dnd ends
  cd34131... task-row: properly disconnect from the task
  63cc5f7... task: correctly check stop condition

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