Minor re-phrasings throughout.

Minor re-phrasings throughout.
(Edebug Execution Modes): Sit-for affects continue mode too.
(Jumping): Use `forward-sexp' rather than its keybinding.
(Edebug Misc): Fix Q binding.
(Edebug Eval): Remove cl version.
(Printing in Edebug): Clarify print-length etc.
(Instrumenting Macro Calls): Defopt edebug-eval-macro-args.
(Specification List): Remove edebug-unwrap findex entry.
(Specification Examples): defmacro is actually not the same as defun.
Escape "`" in example.