Move MAPREDUCE-3138 changes to Release 0.22 section.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1180751 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -340,9 +340,6 @@ Release 0.23.0 - Unreleased
 
     MAPREDUCE-3134. Added documentation the CapacityScheduler. (acmurthy) 
 
-    MAPREDUCE-3138. Add a utility to help applications bridge changes in 
-    Context Objects APIs due to MAPREDUCE-954. (omalley via acmurthy)
-
     MAPREDUCE-3013. Removed YarnConfiguration.YARN_SECURITY_INFO and its usage
     as it doesn't affect security any more. (vinodkv)
 
@@ -1765,6 +1762,9 @@ Release 0.22.0 - Unreleased
     MAPREDUCE-2505. Explain how to use ACLs in the fair scheduler.
     (matei via eli)
 
+    MAPREDUCE-3138. Add a utility to help applications bridge changes in 
+    Context Objects APIs due to MAPREDUCE-954. (omalley via acmurthy)
+
   OPTIMIZATIONS
 
     MAPREDUCE-1354. Enhancements to JobTracker for better performance and