[atk] Release 2.21.90

[Alejandro Piñeiro Iglesias <apinheiro src gnome org>]

commit e8a89e26c017ec93b78f2cbcd3438bcdbccbce7a
Author: Alejandro Piñeiro <apinheiro igalia com>
Date:   Fri Aug 12 10:41:32 2016 +0200

    Release 2.21.90

 NEWS         |   22 ++++++++++++++++++++++
 configure.ac |    4 ++--
 2 files changed, 24 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index 1716c58..3433c09 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,25 @@
+Changes in version 2.21.90
+==========================
+*
+* Bug 764883: Add some missing argument (out) annotations
+* Add Language headers to po files
+* MSVC/win32
+   * MSVC Builds: Add a Common Autotools Module for Introspection (Bug 764983)
+   * MSVC Builds: Generate the Introspection Build Commands (Bug 764983)
+   * Clean up atk-introspection-msvc.mak
+   * Visual Studio builds: Include version info in property sheets
+   * Visual Studio builds: Generate atk.pc
+   * Visual Studio 2008 builds: Ensure pc file is generated before "install"
+   * Visual Studio builds: Make .pc generation more flexible
+   * build/win32/pc_base.py: Allow custom options
+   * build/win32/atkpc.py: Fix dependent package string
+
+Contributors:
+Piotr Drąg, Chun-wei Fan, Rico Tzschichholz
+
+Translations:
+GNOME Translation Robot (gd), Cédric Valmary (oc)
+
 Changes in version 2.20.00:
 ===========================
 
diff --git a/configure.ac b/configure.ac
index de76ec9..10f0d09 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,8 +16,8 @@ dnl set ATK_BINARY_AGE _and_ ATK_INTERFACE_AGE to 0.
 
 dnl The triplet 
 m4_define([atk_major_version], [2])
-m4_define([atk_minor_version], [20])
-m4_define([atk_micro_version], [0])
+m4_define([atk_minor_version], [21])
+m4_define([atk_micro_version], [90])
 m4_define([atk_version],
           [atk_major_version.atk_minor_version.atk_micro_version])