[libwnck] Created tag 2.31.0

[Vincent Untz <vuntz src gnome org>]

The unsigned tag '2.31.0' was created.

Tagger: Vincent Untz <vuntz gnome org>
Date: Mon Mar 5 10:35:29 2012 +0100

    Tagged for release 2.31.0.

Changes since the last tag 'LIBWNCK_2_30_7':

Andrzej (1):
      pager: Add wnck_pager_set_layout_policy() API

Vincent Untz (8):
      release: post-release bump to 2.30.8
      build: Bump release version to 2.31.0 since we're going to add API
      core: Add version.h to provide macros to know libwnck version
      pager: Cleanup of previous commit
      doc: Improve documentation for new API
      build: Generate ChangeLog on make dist
      build: Create xz tarballs and use tar-ustar
      release: 2.31.0