[at-spi2-core] Release v2.17.90

[Mike Gorse <mgorse src gnome org>]

commit 83f9456d2ee94ee1cf73849681fac08a23127d87
Author: Mike Gorse <mgorse suse com>
Date:   Mon Aug 17 14:28:14 2015 -0500

    Release v2.17.90

 NEWS |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
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diff --git a/NEWS b/NEWS
index 4a56efa..1c725d0 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+What's new in at-spi2-core 2.17.90:
+
+* Modified the cache API to specify an object's index and child count
+  rather than its children. This eliminates the need for the application
+  to enumerate its children, improving performance in some places with
+  large lists (bgo#650090).
+
 What's new in at-spi2-core 2.17.1:
 
 * Functions shouldn't try to return values (bgo#749330).