Move screenshot scripts to the meta collect.

collects/meta/info.rkt

@@ -1,3 +1,4 @@
 #lang setup/infotab
 
 (define name "Infrastructure code")
+(define compile-omit-paths '("images/taking-screenshots/racket-widget.scm"))

collects/meta/props

@@ -804,6 +804,7 @@ path/s is either such a string or a list of them.
 "collects/meta/drdr" responsible (jay) drdr:command-line #f
 "collects/meta/drdr2" responsible (jay) drdr:command-line #f
 "collects/meta/images/mkheart.rkt" drdr:command-line #f
+"collects/meta/images/taking-screenshots/racket-widget.scm" drdr:command-line #f
 "collects/meta/props" responsible (eli jay) drdr:command-line (racket "-um" * "verify")
 "collects/meta/web" drdr:command-line #f
 "collects/mred" responsible (mflatt)

collects/scribblings/gui/widget-gallery.scrbl

@@ -5,7 +5,7 @@
 @title[#:style '(toc quiet)]{Widget Gallery}
 
 @; Note: Instructions for taking widget screenshots are avaiable at:
-@;   ./taking-screenshots/instructions
+@;   collects/meta/images/taking-screenshots/instructions
 
 This section shows the main widgets available in the Racket Graphical User
 Interface Toolkit. Each image is a link to the documentation of the relevant