[simple-scan] Created tag 3.31.4

[Robert Ancell <rancell src gnome org>]

The signed tag '3.31.4' was created.

Tagger: Robert Ancell <robert ancell canonical com>
Date: 1546908007 +1300

    Released 3.31.4

Changes since the last tag '3.31.3':

Anders Jonsson (2):
      Update Swedish translation
      Update Swedish translation

Efstathios Iosifidis (1):
      Update Greek translation

Emin Tufan Çetin (1):
      Update Turkish translation

Robert Ancell (1):
      Releasing 3.31.4

Ryuta Fujii (1):
      Update Japanese translation