[niepce] (12 commits) ...ui: fix some Gtk warning. One more time.

[Hubert Figuière <hub src gnome org>]

Summary of changes:

  bc84860... Some cleanup. ASync scanning the directory
  8db4495... import: re-layout the import dialog. Add metadata pane.
  18d8463... Import: rework the import UI. Modularize the importer.
  817ab94... Import: some code style fixes
  a04a976... Merge branch 'master' into import-dialog
  aed465c... Merge branch 'master' into import-dialog
  2f6f2bb... fwk: Fix container iterators following merge from master.
  89d43a6... Import: it is the source not the target. Relayout the dialo
  2a800ec... fwk: path_dirname() remove the trailing slash. Return '.' i
  f88974a... library: add a single file import command to the librarycli
  100898b... importer: move the import mechanics into the importer.
  68a1009... ui: fix some Gtk warning. One more time.