[meld] (10 commits) Created branch pathlabel

[Kai Willadsen <kaiw src gnome org>]

The branch 'pathlabel' was created.

Summary of new commits:

  6b9b54b... melddoc: Pull external file opening helper out to a helper 
  b4bc72d... melddoc: Support gfiles for opening externally
  24d9aed... ui.pathlabel: New widget for displaying paths with some hel
  c911cfa... filediff: Remove unused widget mapping
  60a3960... filediff: Move from GtkToolbar to GtkActionBar for per-pane
  370f5fb... iohelpers: Add new common-parent helper
  b1aa0f2... Update flake8 config
  e353761... ui.pathlabel: Update path display to support cross-pane sum
  3f7eb64... filediff: Add open-folder and copy-path actions to file con
  de2630e... Style and indentation fixes