Update link to the PyOpenGL project in the "gl" module docs.

This closes SF bug #459256.

Doc/lib/libgl.tex

@@ -189,12 +189,14 @@ main()
 
 
 \begin{seealso}
-  \seetext{An interface to OpenGL\index{OpenGL} is also available; see
-           information about David Ascher's\index{Ascher, David}
-           \strong{PyOpenGL}\index{PyOpenGL} online at
-           \url{http://starship.python.net/crew/da/PyOpenGL/}.  This may
-           be a better option if support for SGI hardware from before about
-           1996 is not required.}
+  \seetitle[http://pyopengl.sourceforge.net/]
+           {PyOpenGL: The Python OpenGL Binding}
+           {An interface to OpenGL\index{OpenGL} is also available;
+            see information about the
+            \strong{PyOpenGL}\index{PyOpenGL} project online at
+            \url{http://pyopengl.sourceforge.net/}.  This may be a
+            better option if support for SGI hardware from before
+            about 1996 is not required.}
 \end{seealso}