* doc/misc/tramp.texi (Inline methods): Add "surs" and "sudors" methods.

* etc/NEWS: Add optional "surs" and "sudors" Tramp methods.
Presentational fixes and improvements.

* lisp/net/tramp-cmds.el (tramp-file-name-with-method): Add "surs"
and "sudors" to :type.  Adapt :version.

* lisp/net/tramp-sh.el (tramp-enable-surs-method)
(tramp-enable-sudors-method): New defuns
(tramp-sh-handle-expand-file-name): Add "surs" and "sudors" in check.

* lisp/net/tramp.el (tramp-methods): Adapt docstring.

* lisp/comint.el (comint-password-prompt-regexp):
* test/lisp/comint-tests.el (comint-testsuite-password-strings):
Add su-rs and sudo-rs password prompts.

* doc/lispref/modes.texi (Font Lock Basics):
* lisp/font-core.el (font-lock-defaults): Document when
SYNTAX-ALIST is used and how it interacts with syntactic fontification.

* lisp/progmodes/elisp-mode.el (elisp)
(elisp-fontify-semantically, elisp-symbol-at-mouse)
(elisp-free-variable, elisp-special-variable-declaration)
(elisp-condition, elisp-major-mode-name, elisp-face)
(elisp-symbol-role, elisp-symbol-role-definition)
(elisp-function, elisp-non-local-exit, elisp-unknown-call)
(elisp-macro, elisp-special-form, elisp-throw-tag)
(elisp-feature, elisp-rx, elisp-theme, elisp-binding-variable)
(elisp-bound-variable, elisp-shadowing-variable)
(elisp-shadowed-variable, elisp-variable-at-point)
(elisp-warning-type, elisp-function-property-declaration)
(elisp-thing, elisp-slot, elisp-widget-type, elisp-type)
(elisp-group, elisp-nnoo-backend, elisp-ampersand)
(elisp-constant, elisp-defun, elisp-defmacro, elisp-defvar)
(elisp-defface, elisp-icon, elisp-deficon, elisp-oclosure)
(elisp-defoclosure, elisp-coding, elisp-defcoding)
(elisp-charset, elisp-defcharset, elisp-completion-category)
(elisp-completion-category-definition, elisp-add-help-echo)
(elisp-fontify-symbol-precedence-function): Add :version tags.

* lisp/emacs-lisp/elisp-scope.el: Fix references to meta-syntactic
variables in the commentary.
(elisp-scope-describe-symbol-role, coding, defcoding, charset)
(defcharset): Doc fixes.
(elisp-scope-safe-macros): Add :version tag.  Doc fix.

* doc/emacs/display.texi (Semantic Font Lock): Fix punctuation and
wording, improve cross-references and indexing.

* doc/misc/use-package.texi (Binding to a keymap): Discuss
defvar-keymap ':prefix t' feature.