Log Message:
Update to 2.3.0beta2:

* 2.3.0beta2 (development)

    * Messages marked as read or junk mails are now excluded from the numbers
      of new messages.
    * Win32: GTK+ was updated to 2.10.4, and GLib was updated to 2.12.4.
    * Win32: The crash that occurred when Desktop folder was selected on the
      file selection dialog was fixed.
    * Win32: The bug that window position was reset when quitting Sylpheed
      while window was hidden was fixed.
    * Win32: The WSAEWOULDBLOCK state is now properly handled in socket I/O.

* 2.3.0beta1 (development)

    * GtkStatusIcon is used for the tray icon if available.
    * When GtkStatusIcon is used, the tray icon blinks for 5 seconds when new
      mails arrive.
    * The option 'Minimize to tray icon' was added.
    * The left click on the tray icon now only brings the main window in front.
    * Win32: The tray icon was implemented.
    * Win32: The SSL connection problem was fixed.
    * Win32: The included libraries (GLib, GTK+, Pango) were updated to the
      latest version. This introduces the following improvements:
      - The performance of network communication at receiving and sending
        was improved.
      - The appearance of the UI became more native-like.
      - The scrolling speed of the summary view with cursor keys was improved.
      - The broken display of the text view when it was partially hidden was
        fixed.
      - The position of color labels menu in the search dialog is correct now.
      - The problem that GTK+ strings became untranslated after the popup of
        context menu on GtkTextView was fixed.
      - The crash that occurred on startup if a font with non-ascii name was
        specified for system font was fixed.