Preparing for release 0.16.3

git-svn-id: https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.17@647353 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -556,7 +556,7 @@ Release 0.17.0 - Unreleased
    HADOOP-3204. Fixes a problem to do with ReduceTask's LocalFSMerger not
    catching Throwable.  (Amar Ramesh Kamat via ddas)
 
-Release 0.16.3 - Unreleased
+Release 0.16.3 - 2008-04-16
 
   BUG FIXES