Add news items for the recent pybench and platform changes.

Misc/NEWS

@@ -109,6 +109,14 @@ Core and builtins
 Library
 -------
 
+- Changed platform module API python_version_tuple() to actually
+  return a tuple (it used to return a list)
+
+- Added new platform module APIs python_branch(), python_revision(),
+  python_implementation() and linux_distribution()
+
+- Added support for IronPython and Jython to the platform module
+
 - The sets module has been deprecated.  Use the built-in set/frozenset types
   instead.
 
@@ -376,6 +384,20 @@ Tests
   number properly.
 
 
+Tools
+-----
+
+- Added IronPython and Jython support to pybench (part of which
+  was patch #1563844)
+
+- Made some minor changes to pybench output to allow the user
+  to see which Python version is running pybench
+
+- Added support for the new platform module feature
+  platform.python_implementation(); this will now be saved
+  in the benchmark pickle
+
+
 Documentation
 -------------