Set the release date for 2.5.2

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -1097,7 +1097,7 @@ Release 2.6.0 - 2014-11-15
     HADOOP-11282. Skip NFS TestShellBasedIdMapping tests that are irrelevant on
     Windows. (cnauroth)
 
-Release 2.5.2 - UNRELEASED
+Release 2.5.2 - 2014-11-10
 
   INCOMPATIBLE CHANGES
 

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -1418,7 +1418,7 @@ Release 2.6.0 - 2014-11-15
     HDFS-7383. DataNode.requestShortCircuitFdsForRead may throw 
     NullPointerException. (szetszwo via suresh)
 
-Release 2.5.2 - UNRELEASED
+Release 2.5.2 - 2014-11-10
 
   INCOMPATIBLE CHANGES
 

hadoop-mapreduce-project/CHANGES.txt

@@ -465,7 +465,7 @@ Release 2.6.0 - 2014-11-15
     MAPREDUCE-5958. Wrong reduce task progress if map output is compressed
     (Emilio Coppa and jlowe via kihwal)
 
-Release 2.5.2 - UNRELEASED
+Release 2.5.2 - 2014-11-10
 
   INCOMPATIBLE CHANGES
 

hadoop-yarn-project/CHANGES.txt

@@ -929,7 +929,7 @@ Release 2.6.0 - 2014-11-15
     consistent with the (somewhat incorrect) behaviour in the non-recovery case.
     (Jian He via vinodkv)
 
-Release 2.5.2 - UNRELEASED
+Release 2.5.2 - 2014-11-10
 
   INCOMPATIBLE CHANGES