[devhelp] Created tag 3.30.0

[Sébastien Wilmet <swilmet src gnome org>]

The unsigned tag '3.30.0' was created.

Tagger: Sébastien Wilmet <swilmet gnome org>
Date: 1531741689 +0200

    Version 3.30.0

Changes since the last tag '3.29.3':

Bruno Lopes da Silva (1):
      Update Brazilian Portuguese translation

Daniel Mustieles (1):
      Updated Spanish translation

Daniel Șerbănescu (1):
      Update Romanian translation

Fabio Tomat (1):
      Update Friulian translation

Jordi Mas i Hernandez (1):
      Update Catalan translation

Sébastien Wilmet (6):
      Post-release version bump
      build: add gtk-doc fixxref_args for WebKitGTK+
      build: minor cleanup
      docs: improve the docs of the new libdevhelp classes
      Rename dh_window bind function to dh_application_window
      Release 3.30.0