scribble & pict: add history

These history notes should have been part of commits c4a58dc4a5 and
05760a12f6.

pkgs/pict-pkgs/pict-doc/pict/scribblings/pict.scrbl

@@ -64,9 +64,16 @@ picts. The functions @racket[pict-width], @racket[pict-height],
 @racket[pict-descent], and @racket[pict-ascent] extract bounding box
 information from a pict.
 
-A pict is a convertible datatype through the @racketmodname[file/convertible]
-protocol. Supported conversions include @racket['png-bytes],
-@racket['eps-bytes], and @racket['pdf-bytes].
+A pict is a convertible datatype through the
+@racketmodname[file/convertible] protocol. Supported conversions
+include @racket['png-bytes], @racket['eps-bytes], @racket['pdf-bytes],
+@racket['svg-bytes], and variants such as @racket['png-bytes+bounds]
+and @racket['png-bytes+bounds8].
+
+@history[#:changed "1.2" @elem{Added support for
+                               @racket['png-bytes+bounds],
+                               @racket['png-bytes+bounds8] and similar
+                               variants.}]
 
 
 @defstruct[pict ([draw any/c]
@@ -992,7 +999,9 @@ A parameter that determines an amount of padding added to each edge of
 a @tech{pict} when converting to a format like @racket['png@2x-bytes+bounds8]
 (see @racketmodname[file/convertible]). The default value of the parameter
 is @racket['(3 3 3 3)], which adds three pixels to each edge to accomodate
-a small amount of drawing outside the pict's @tech{bounding box}.}
+a small amount of drawing outside the pict's @tech{bounding box}.
+
+@history[#:added "1.2"]}
 
 
 @defproc[(draw-pict [pict pict?]

pkgs/pict-pkgs/pict-lib/info.rkt

@@ -12,4 +12,4 @@
 
 (define pkg-authors '(mflatt robby))
 
-(define version "1.1")
+(define version "1.2")

pkgs/scribble-pkgs/scribble-doc/scribblings/scribble/renderer.scrbl

@@ -104,7 +104,9 @@ written to the current output port.
 
 If @racket[warn-undefined?] is a true value, then references to
 missing cross-reference targets trigger a warning message on the
-current error port.}
+current error port.
+
+@history[#:changed "1.4" @elem{Added the @racket[#:image-preferences] argument.}]}
 
 
 @section{Base Renderer}
@@ -261,7 +263,8 @@ Represents a renderer.
                  [prefix-file (or/c path-string? #f) #f]
                  [style-file (or/c path-string? #f) #f]
                  [style-extra-files (listof path-string?) null]
-                 [extra-files (listof path-string?) null])]{
+                 [extra-files (listof path-string?) null]
+                 [image-preferences (listof (or/c 'ps 'pdf 'png 'svg 'gif)) null])]{
 
 Creates a renderer whose output will go to @racket[dest-dir]. For
 example, @racket[dest-dir] could name the directory containing the
@@ -287,8 +290,15 @@ styles in a formal-specific way; see @secref["config-style"] for more
 information.
 
 The @racket[extra-files] argument names files to be copied to the
-output location, such as image files or extra configuration files.}
-}
+output location, such as image files or extra configuration files.
+
+The @racket[image-preferences] argument specified preferred formats
+for image files and conversion, where formats listed earlier in the
+list are more preferred. The renderer may not support all of the
+formats listed in @racket[image-preferences].
+
+@history[#:changed "1.4" @elem{Added the @racket[image-preferences]
+                               initialization argument.}]}}
 
 @; ----------------------------------------
 

pkgs/scribble-pkgs/scribble-doc/scribblings/scribble/running.scrbl

@@ -72,6 +72,8 @@ information in one document is visible to the other documents. See
 @secref["xref-flags"] for information on references that cross
 documents that are built separately.
 
+@history[#:changed "1.4" @elem{Added @DFlag{dvipdf}.}]
+
 @section{Extra and Format-Specific Files}
 
 Use the @DFlag{style} flag to specify a format-specific file to adjust
@@ -188,6 +190,8 @@ ps}. To generate HTML pages with images converted to SVG format
 instead of PNG format, combine @DFlag{html} with
 @exec{@DPFlag{convert} svg}.
 
+@history[#:changed "1.4" @elem{Added @DPFlag{convert} support.}]
+
 @section{Passing Command-Line Arguments to Documents}
 
 When @exec{scribble} loads and renders a document module, by default