Refresh docs

Author: greghendershott

doc/racket-mode.texi

@@ -1647,7 +1647,7 @@ A discussion of the information provided by a Racket language:
 @item @kbd{C-x C-e} 
 @tab @ref{racket-send-last-sexp}
 @item @kbd{TAB} 
-@tab @code{indent-for-tab-command}
+@tab @code{racket-hash-lang-indent}
 @item @kbd{RET} 
 @tab @code{newline-and-indent}
 @end multitable
@@ -2650,9 +2650,9 @@ Any rackunit test failure messages show the location. You may use
 With @kbd{C-u} uses errortrace for improved stack traces.
 Otherwise follows the @ref{racket-error-context} setting.
 
-With @kbd{C-u} @kbd{C-u} also runs the
-tests with coverage instrumentation and highlights uncovered code
-using @code{font-lock-warning-face}.
+With @kbd{C-u} @kbd{C-u} also runs the tests
+with coverage instrumentation. Expressions not covered by tests are
+treated as errors -- see @code{next-error}.
 
 See also:
 @itemize
@@ -3461,14 +3461,14 @@ This has a visible effect only when there is @emph{not} also a
 
 How much documentation to show via @code{eldoc}.
 
-Used by @code{racket-xp-eldoc-point} and @code{racket-xp-eldoc-sexp-app}.
+Used by @code{racket-xp-eldoc-point-or-sexp-head}.
 
 @itemize
 @item
 Minimal: Only the help-echo string.
 
 @item
-Summary: Also the signature a.k.a. ``blubox'' from the
+Summary: Also the signature a.k.a. ``bluebox'' from the
 documentation.
 
 @item