Tramp requires Emacs 24.4

Tramp requires Emacs 24.4

* doc/misc/tramp.texi (Frequently Asked Questions):
Use `with-eval-after-load'. in example.

* doc/misc/trampver.texi: Set variable emacsver.

* lisp/net/tramp.el (tramp-send-string, tramp-call-process)
(tramp-call-process-region, tramp-process-lines):
* lisp/net/tramp-adb.el (tramp-adb-handle-file-truename)
(tramp-adb-sh-fix-ls-output, tramp-adb-maybe-open-connection):
* lisp/net/tramp-gvfs.el (tramp-gvfs-get-directory-attributes)
(tramp-gvfs-handle-file-notify-add-watch)
* lisp/net/tramp-sh.el (tramp-sh-handle-file-truename)
(tramp-do-copy-or-rename-file-out-of-band)
(tramp-sh-handle-file-notify-add-watch, tramp-find-executable)
(tramp-set-remote-path)
(tramp-open-connection-setup-interactive-shell)
(tramp-maybe-open-connection, tramp-send-command):
* lisp/net/tramp-smb.el (tramp-smb-handle-copy-directory)
(tramp-smb-handle-file-acl, tramp-smb-handle-process-file)
(tramp-smb-handle-set-file-acl)
(tramp-smb-handle-start-file-process)
(tramp-smb-maybe-open-connection):
* lisp/net/tramp-sudoedit.el (tramp-sudoedit-handle-set-file-acl):
(tramp-sudoedit-send-command): Use `string-join' and `string-empty-p'.

* lisp/net/tramp-adb.el:
* lisp/net/tramp-archive.el:
* lisp/net/tramp-integration.el:
* lisp/net/tramp-ftp.el: Use `with-eval-after-load'.

* lisp/net/tramp-cmds.el (tramp-cleanup-connection)
(tramp-cleanup-all-connections): Cancel timer.

* lisp/net/tramp-compat.el (subr-x): Require.
(default-toplevel-value): Don't make it a defalias.

* lisp/net/tramp-gvfs.el: Use `dbus-event-error-functions'.  Do
not special handle `split-string'.

* lisp/net/tramp.el: Require Emacs 24.4.
(tramp-password-prompt-regexp): Use `password-word-equivalents'.
(tramp-user-error): Use `user-error'.
(tramp-replace-environment-variables): Use `substitute-env-vars'.
(tramp-wait-for-regexp): Rearrange `with-current-buffer' call.
(tramp-get-local-gid): Use `group-gid'.

* lisp/net/trampver.el: Check for Emacs 24.4.

* test/lisp/net/tramp-tests.el (tramp-test02-file-name-dissect)
(tramp-test02-file-name-dissect-simplified)
(tramp-test02-file-name-dissect-separate)
(tramp-test03-file-name-host-rules)
(tramp-test03-file-name-method-rules): Don't check for `user-error'.