adjust racket/gui/base' to re-export file/resource'

Merge to 5.1 along with b4ce4bb, 3375005, 18eb7c8, 3c4807f

collects/mred/mred-sig.rkt

@@ -91,6 +91,7 @@ get-panel-background
 get-ps-setup-from-user
 get-highlight-background-color
 get-highlight-text-color
+get-resource
 get-text-from-user
 get-the-editor-data-class-list
 get-the-snip-class-list
@@ -210,4 +211,5 @@ window<%>
 write-editor-global-footer
 write-editor-global-header
 write-editor-version
+write-resource
 yield

collects/mred/private/mred.rkt

@@ -5,6 +5,7 @@
                  make-base-empty-namespace)
            scheme/class
            racket/draw racket/snip
+           file/resource
            mzlib/etc
 	   (prefix wx: "kernel.ss")
 	   (prefix wx: "wxme/editor.ss")
@@ -169,7 +170,8 @@
           [else #f])))
 
   (provide (all-from racket/draw)
-           (all-from racket/snip))
+           (all-from racket/snip)
+           (all-from file/resource))
 
   (provide button%
 	   canvas%

collects/scribblings/gui/gui.scrbl

@@ -10,7 +10,8 @@
 @defmodule*/no-declare[(racket/gui/base)]{The
 @racketmodname[racket/gui/base] library provides all of the class,
 interface, and procedure bindings defined in this manual, in addition
-to the bindings of @racketmodname[racket/draw].}
+to the bindings of @racketmodname[racket/draw] and 
+@racketmodname[file/resource].}
 
 @defmodulelang*/no-declare[(racket/gui)]{The
 @racketmodname[racket/gui] language combines all bindings of the

doc/release-notes/racket/Draw_and_GUI_5_1.txt

@@ -156,12 +156,21 @@ jump-defeating `dynamic-wind' that formerly guarded callbacks has been
 removed.
 
 
+Registry Functions
+-----------------
+
+The `get-resource' and `write-resource' functions have moved to a
+`file/resource' library that is re-exported by `racket/gui/base'.
+These function now work only for reading and writing the Windows
+registry; they report failure for other platforms and modes.
+
+
 Removed Functions
 -----------------
 
-The `write-resource, `get-reource', and `send-event' functions have
-been removed from `racket/gui/base'. If there is any demand for the
-removed functionality, it will be implemented in a new library.
+The `send-event' function has been removed from `racket/gui/base'. If
+there is any demand for the removed functionality, it will be
+implemented in a new library.
 
 The `current-ps-afm-file-paths' and `current-ps-cmap-file-paths'
 functions have been removed, because they no longer apply. PostScript