* use py.builtin._getimself instead of getattr(..., '*self*') everywhere

* fix logging to work with 3k, implement buffering manually
* fix unicode capturing issue - re-introduce EncodedFile for <3K file writes

--HG--
branch : trunk

py/__init__.py

@@ -151,6 +151,7 @@ initpkg(__name__,
     'builtin._totext'        : ('./builtin/builtin31.py', '_totext'),
     'builtin._isbytes'       : ('./builtin/builtin31.py', '_isbytes'),
     'builtin._istext'        : ('./builtin/builtin31.py', '_istext'),
+    'builtin._getimself'     : ('./builtin/builtin31.py', '_getimself'),
     'builtin.builtins'       : ('./builtin/builtin31.py', 'builtins'),
     'builtin.execfile'       : ('./builtin/builtin31.py', 'execfile'),
     'builtin.callable'       : ('./builtin/builtin31.py', 'callable'),