Log Message:
Update emacs-snapshot to 24.0.50.20101120.

- Sync with Tramp 2.2.0.

    * net/tramp.el (tramp-handle-insert-file-contents): Don't use
    `file-remote-p' (due to compatibility).

    * net/tramp-sh.el (tramp-do-copy-or-rename-file-directly)
    (tramp-do-copy-or-rename-file-out-of-band): Use `ignore-errors'.