Note deprecation of classic toolbar in api_changes and matplotlibrc.template

Author: efiring

doc/api/api_changes.rst

@@ -14,6 +14,9 @@ For new features that were added to matplotlib, please see
 Changes in 1.2.x
 ================
 
+* The ``classic`` option of the rc parameter ``toolbar`` is deprecated
+  and will be removed in the next release.
+
 * The :meth:`~matplotlib.cbook.isvector` method has been removed since it
   is no longer functional.
 

matplotlibrc.template

@@ -47,7 +47,7 @@ backend      : %(backend)s
 #backend_fallback: True
 
 #interactive  : False
-#toolbar      : toolbar2   # None | classic | toolbar2
+#toolbar      : toolbar2   # None | toolbar2  ("classic" is deprecated)
 #timezone     : UTC        # a pytz timezone string, eg US/Central or Europe/Paris
 
 # Where your matplotlib data lives if you installed to a non-default