[metacity] Created tag 3.18.0

[Alberts Muktupāvels <muktupavels src gnome org>]

The unsigned tag '3.18.0' was created.

Tagger: Alberts Muktupāvels <alberts muktupavels gmail com>
Date: Wed Sep 23 18:02:07 2015 +0300

    Tag release 3.18.0

Changes since the last tag '3.17.2':

Alberts Muktupāvels (54):
      prefs: check if we have a valid display
      compositor: fix possible crash closing/destroying window
      compositor: return cairo_surface_t instead of pixmap
      screen: add error trap in get_window_pixbuf
      update git.mk to latest version
      build: remove GNOME_MAINTAINER_MODE_DEFINES
      build: add AX_IS_RELEASE
      build: remove AC_PREREQ
      configure.ac: reformat/redo version info and autoconf initialization
      build: add AC_CONFIG_MACRO_DIR
      build: add AC_CONFIG_AUX_DIR
      update toplevel Makefile.am
      redo autogen.sh, don't use gnome-autogen.sh
      configure.ac: update AM_INIT_AUTOMAKE
      build: add AX_CHECK_ENABLE_DEBUG
      build: add AX_COMPILER_FLAGS
      boxes: fix build warning
      fix redundant redeclaration warning in workspace.h
      compositor-xrender: fix build warnings
      core: fix build warnings
      bell: fix build warning
      gradient: fix build warnings
      display: fix build warnings
      fix redundant redeclaration warnings in theme.h
      edge-resistance: fix build warnings
      frame: fix build warnings
      configure.ac: remove GTK_API_VERSION
      effects: fix build warnings
      main: fix build warnings
      place: fix build warnings
      configure.ac: update printed build info
      testboxes: fix build warnings
      screen: fix build warnings
      prefs: fix build warnings
      keybindings: fix build warnings
      mark meta_exit function as noreturn
      util: fix build warning
      window: fix build warnings
      stack: fix build warnings
      workspace: fix build warnings
      window-props: fix build warnings
      frames: fix build warnings
      xprops: fix build warnings
      menu: fix build warnings
      tabpopup: fix build warnings
      theme-parser: fix build warnings
      theme-viewer: fix build warnings
      theme: fix build warnings
      session: fix build warnings
      workspace: fix build with --disable-canberra
      compositor-xrender: include old shape in damage
      effects: remove hack
      window: fix window resizing
      bump version to 3.18.0, update NEWS

Balló György (1):
      Adwaita theme: fix fallback colors

Balázs Úr (1):
      Updated Hungarian translation

Daniel Mustieles (1):
      Updated Spanish translation

Marek Černocký (1):
      Updated Czech translation

Piotr Drąg (2):
      Updated Polish translation
      Updated Polish translation

Sveinn í Felli (1):
      Updated Icelandic translation

Yosef Or Boczko (1):
      Updated Hebrew translation