[gnome-keysign] (16 commits) ...Merge branch 'master' of gitlab.gnome.org:GNOME/gnome-keysign

[Tobias Mueller <tobiasmue src gnome org>]

Summary of changes:

  412445b... Add a first implementation of drag and drop
  aee2eed... Add import signature function
  05f9e1e... Add Ability to DnD from Evolution
  51d283c... gpgmeh: add signature import with seahorse DBus
  78e8131... send: show an infobar with the signature import result
  cac57d2... gpgmeh: use try-except-else for Seahorse DBus
  99ded18... send: create a new infobar for import result
  523b48c... send: add missing import infobar
  bb004e2... send: unquote attachment path
  45b7c6e... send: log as exception and remove unnecessary close()
  497b240... send: use comma separeted files with log
  494f8f1... send: provide a message with log.exception
  e87039c... gpgmeh: Add signature check before import
  b2e6644... Merge branch 'master' into dnd
  4e67348... Updated release notes to reflect infobar and drag and drop
  b06e949... Merge branch 'master' of gitlab.gnome.org:GNOME/gnome-keysi