[gnome-maps] Created tag v3.28.0

[Marcus Lundblad <mlundblad src gnome org>]

The signed tag 'v3.28.0' was created.

Tagger: Marcus Lundblad <ml update uu se>
Date: Mon Mar 12 21:17:32 2018 +0100

    Release 3.28.0

Changes since the last tag 'v3.27.92':

Anders Jonsson (1):
      Update Swedish translation

Ask Hjorth Larsen (1):
      Updated Danish translation

Efstathios Iosifidis (1):
      Update Greek translation

Gianvito Cavasoli (1):
      Update Italian translation

Marcus Lundblad (2):
      osmOauthProxyCall: Use GPL 2+
      Release 3.28.0

Марко Костић (1):
      Update Serbian translation

Милош Поповић (1):
      Update Serbian Latin translation