[clutter] Release Clutter 1.21.8

[Emmanuele Bassi <ebassi src gnome org>]

commit 414907983e88b83328d2e65895d09981efd16ba4
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Sun Mar 15 16:06:30 2015 +0000

    Release Clutter 1.21.8

 NEWS         |   27 +++++++++++++++++++++++++++
 configure.ac |    2 +-
 2 files changed, 28 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 478b7d6..47a0d03 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,30 @@
+Clutter 1.21.8                                                       2015-03-15
+===============================================================================
+
+  • List of changes since Clutter 1.21.6
+
+    - Documentation updates
+    The messages for most of the deprecated API list the intended replacement
+    classes or approaches to be used when porting code.
+
+    - Update the MSVC build files
+
+    - Improve damage tracking on ClutterStage
+    This should improve performance, especially when paired with the
+    buffer_age extension.
+
+    - Updated translations
+    Greek, Polish, Ukrainian, Italian, Slovak, Latvian, Bosnian.
+
+  • List of bugs fixed since Clutter 1.21.6
+
+    #745512 - Improve damage tracking and use swap_buffers_with_damage
+
+Many thanks to:
+
+  Chun-wei Fan, Chris Wilson, Daniel Korostil, Dušan Kazik, Milo Casagrande,
+  Piotr Drąg, Rūdolfs Mazurs, Samir Ribic, Tom Tryfonidis.
+
 Clutter 1.21.6                                                       2015-03-03
 ===============================================================================
 
diff --git a/configure.ac b/configure.ac
index 18b5e75..337add2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,7 +10,7 @@
 # - increase clutter_interface_version to the next odd number
 m4_define([clutter_major_version], [1])
 m4_define([clutter_minor_version], [21])
-m4_define([clutter_micro_version], [7])
+m4_define([clutter_micro_version], [8])
 
 # • for stable releases: increase the interface age by 1 for each release;
 #   if the API changes, set to 0. interface_age and binary_age are used to