[gnome-todo] (18 commits) Non-fast-forward update to branch wip/gbsneto/plugins

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

The branch 'wip/gbsneto/plugins' 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:

  35a3a06... plugin-dialog: initial implementation
  0997493... project: cleanup headers
  e1fce7e... project: fix documentation
  4cb018f... project: enable introspection
  a0b8dff... plugin-dialog: fix leak
  9c24d12... plugin-dialog: simplify empty placeholder logic
  a7657ce... schema: indent fix
  bf58893... plugin-manager: save active extensions
  d712607... manager: fix properties
  4cee119... list-selector-grid: only select item when in selection mode
  2881d8f... window: load plugins' header widgets
  1ae84aa... grid-item: rename from GtdTaskListItem
  c6ad895... views: implement list view
  429e983... task-list-view: add support for custom header functions
  cdd4160... scheduled-panel: show headers on tasks
  86f6184... docs
  e912325... activatable: update interface
  0eea405... WIP

Commits added to the branch:

  a1a5ee8... plugin-dialog: initial implementation
  aea2269... project: cleanup headers
  01bff34... project: fix documentation
  4457331... project: enable introspection
  d7cd724... plugin-dialog: fix leak
  50a3b12... plugin-dialog: simplify empty placeholder logic
  7bd8610... schema: indent fix
  d372a7f... plugin-manager: save active extensions
  7ce1b18... manager: fix properties
  f8c91d1... list-selector-grid: only select item when in selection mode
  5ff478f... window: load plugins' header widgets
  5a67b45... grid-item: rename from GtdTaskListItem
  afc5267... views: implement list view
  973ed9c... task-list-view: add support for custom header functions
  3c76ee1... scheduled-panel: show headers on tasks
  bdd4cff... more docs fixups
  707e7bc... activatable: update interface
  1339455... WIP