Move YARN-84 to section 2.1.0-beta in CHANGES.txt.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1507587 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.txt

@@ -8,8 +8,6 @@ Trunk - Unreleased
 
   IMPROVEMENTS
 
-    YARN-84. Use Builder to build RPC server. (Brandon Li via suresh)
-
   OPTIMIZATIONS
 
   BUG FIXES
@@ -485,6 +483,8 @@ Release 2.1.0-beta - 2013-07-02
     YARN-912. Move client facing exceptions to yarn-api module. (Mayank Bansal
     via vinodkv)
 
+    YARN-84. Use Builder to build RPC server. (Brandon Li via suresh)
+
   OPTIMIZATIONS
 
     YARN-512. Log aggregation root directory check is more expensive than it