win64: avoid msvcr90.dll

The libjpeg, libeay, and ssleay libraries for Win64 linked to
msvcr90.dll, because of the way that they were compiled with
MSVC 2008, but msvcr90.dll is not included with Win7, and
redistributing it is problematic. The new variants of the libraries
link instead of msvcrt.dll --- which you're not supposed to do
according to MS, but that's the way libraries like Gtk are
built, and it seems to be the right approach. See also

 http://kobyk.wordpress.com/2007/07/20/dynamically-linking-with-msvcrtdll-using-visual-c-2005/

I built libjpeg-8, while the other two are courtesey of
http://www.indyproject.org.

Closes PR 12246

collects/racket/draw/unsafe/jpeg.rkt

@@ -11,7 +11,8 @@
   [(macosx) 
    ;; for PPC, it's actually version 8!
    (ffi-lib "libjpeg.62.dylib")]
-  [(windows) (ffi-lib "libjpeg-7.dll")])
+  [(win32) (ffi-lib "libjpeg-7.dll")]
+  [(win64) (ffi-lib "libjpeg-8.dll")])
 
 (define-ffi-definer define-jpeg jpeg-lib
   #:provide provide)

src/get-libs.rkt

@@ -6,7 +6,7 @@
 ;; without using bytecode.
 
 (define url-host "download.racket-lang.org")
-(define url-path "/libs/3/")
+(define url-path "/libs/4/")
 (define url-base (string-append "http://" url-host url-path))
 
 (provide all-files+sizes)
@@ -22,9 +22,9 @@
       ["libeay32.dll" 1089536]
       ["ssleay32.dll" 237568]]
      [win32/x86_64
-     ["libiconv-2.dll" 1378028]
-     ["libeay32.dll" 1293824]
-     ["ssleay32.dll" 260608]]]
+      ["libiconv-2.dll" 1378028]
+      ["libeay32.dll" 1410560]
+      ["ssleay32.dll" 247808]]]
     ;; GUI Libraries
     [gui
      [i386-macosx
@@ -94,7 +94,7 @@
             ["gtkrc" 1181])
           '())]
      [win32/x86_64
-      ["libjpeg-7.dll" 224768]
+      ["libjpeg-8.dll" 214016]
       ["libcairo-2.dll" 1266147]
       ["libpango-1.0-0.dll" 423199]
       ["libexpat-1.dll" 263006]