don't remove docs for wxThreadHelper::Create; list it in deprecated methods changelog section

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57372 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/thread.h

@@ -454,6 +454,12 @@ public:
     */
     virtual ExitCode Entry() = 0;
 
+    /**
+        @deprecated
+        Use CreateThread() instead.
+    */
+    wxThreadError Create(unsigned int stackSize = 0);
+
     /**
         Creates a new thread of the given @a kind.