Log Message:
Update emacs-snapshot to 20111019.

Changes:
- Add support for detecting encoding in HTML5 specified only as
  <meta charset="UTF-8">.  Implementation just makes http-equiv and
  content-type parts from HTML4 encoding string optional.
- menu-bar.el (menu-bar-file-menu): Add entry for making new window on
  right of selected.  (Bug#9350) Reword other window entries and
  separate them from frame entries.
- net/network-stream.el (network-stream-open-starttls): Improve
  detection of failure due to lack of TLS support.
- textmodes/flyspell.el (flyspell-large-region): Make sure extended
  character mode is used if defined.