[metacity] Created tag 3.30.0

[Alberts Muktupāvels <muktupavels src gnome org>]

The unsigned tag '3.30.0' was created.

Tagger: Alberts Muktupāvels <alberts muktupavels gmail com>
Date: 1535904591 +0300

    Tag release 3.30.0

Changes since the last tag '3.28.0':

Alberts Muktupāvels (19):
      remove Solaris Xinerama support
      refer to monitors as "monitors" rather than "xineramas"
      window: fix a copy/paste error
      prefs: stop using Gtk/DecorationLayout for button layout
      add .gitlab-ci.yml
      update .gitlab-ci.yml
      update .gitlab-ci.yml
      update .gitlab-ci.yml
      keybindings: fix cast-function-type warnings
      util: remove meta_free_gslist_and_elements
      boxes: remove meta_rectangle_free_list_and_elements
      edge-resistance: fix cast-function-type warning
      prefs: fix cast-function-type warning
      menu: fix cast-function-type warnings
      main: fix cast-function-type warning
      stack-tracker: fix cast-function-type warning
      screen: fix cast-function-type warning
      core: remove MetaEventQueue
      bump version to 3.30.0, update NEWS

Dz Chen (1):
      Update zh_CN translation

Piotr Drąg (1):
      Update MSGID_BUGS_ADDRESS in po/Makevars