Adding CHANGES.txt to track branch-trunk-win related changes.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-trunk-win@1399485 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.branch-trunk-win.txt

@@ -0,0 +1,5 @@
+branch-trunk-win changes - unreleased
+
+  YARN-158. Yarn creating package-info.java must not depend on sh.
+  (Chris Nauroth via suresh)
+