v0.26 bugs in Windows

In python 2.7: Need to press meta+enter to execute a line even when multiline mode is off

In python 3.3: Fails with traceback:

raceback (most recent call last):
  File "C:\Users\dg\Anaconda3\envs\ppt3\Scripts\ptpython-script.py", line 9, in <module>
    load_entry_point('prompt-toolkit==0.25', 'console_scripts', 'ptpython')()
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\contrib\entry_points\ptpython.py", line 77, in run

    startup_paths=startup_paths, always_multiline=always_multiline)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\contrib\repl.py", line 189, in embed
    cli.start_repl(startup_paths=startup_paths)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\contrib\repl.py", line 48, in start_repl
    on_exit=AbortAction.RAISE_EXCEPTION)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\__init__.py", line 251, in read_input
    next(g)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\__init__.py", line 301, in _read_input
    self._redraw()
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\__init__.py", line 191, in _redraw
    self.renderer.render(self)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\renderer.py", line 465, in render
    style=self._style, grayed=cli.is_aborting,
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\renderer.py", line 345, in output_screen_diff
    current_pos = move_cursor(screen.get_cursor_position())
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\renderer.py", line 232, in move_cursor
    output.cursor_up(current_y - new.y)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\terminal\win32_output.py", line 166, in cursor_up
    sr = self._screen_buffer_info().dwCursorPosition
AttributeError: 'NoneType' object has no attribute 'dwCursorPosition'

Reproduce both Windows reports under Python 2.7 and Python 3.3, then start with prompt_toolkit/renderer.py and prompt_toolkit/terminal/win32_output.py, following the traceback through read_input and _redraw. Also inspect the multiline execution path in the REPL entry points. Done means single-line execution works without the extra keypress and the Python 3.3 traceback no longer occurs.