Convert several \seetext references to \seerfc and \seetitle versions.

These format somewhat better and include more semantic information in the
source.

Doc/lib/libbase64.tex

@@ -52,9 +52,9 @@ base64 encoded data.
 \begin{seealso}
   \seemodule{binascii}{Support module containing \ASCII{}-to-binary
                        and binary-to-\ASCII{} conversions.}
-  \seetext{Internet \rfc{1521}, \emph{MIME (Multipurpose Internet
-           Mail Extensions) Part One: Mechanisms for Specifying and
-           Describing the Format of Internet Message Bodies}, section
-           5.2, ``Base64 Content-Transfer-Encoding,'' provides the
-           definition of the base64 encoding.}
+  \seerfc{1521}{MIME (Multipurpose Internet Mail Extensions) Part One:
+          Mechanisms for Specifying and Describing the Format of
+          Internet Message Bodies}{Section 5.2, ``Base64
+          Content-Transfer-Encoding,'' provides the definition of the
+          base64 encoding.}
 \end{seealso}

Doc/lib/libjpeg.tex

@@ -68,11 +68,13 @@ options are available:
 
 
 \begin{seealso}
-  \seetext{\emph{JPEG Still Image Data Compression Standard}, by
-    Pennebaker and Mitchell, is the canonical reference for the JPEG
-    image format.}
+  \seetitle{JPEG Still Image Data Compression Standard}{The 
+            canonical reference for the JPEG image format, by
+            Pennebaker and Mitchell.}
 
-  \seetext{The ISO standard for JPEG is also published as ITU T.81.
-    This is available in PDF form at
-    \url{http://www.w3.org/Graphics/JPEG/itu-t81.pdf}.}
+  \seetitle[http://www.w3.org/Graphics/JPEG/itu-t81.pdf]{Information
+            Technology - Digital Compression and Coding of
+            Continuous-tone Still Images - Requirements and
+            Guidelines}{The ISO standard for JPEG is also published as
+            ITU T.81.  This is available online in PDF form.}
 \end{seealso}

Doc/lib/libre.tex

@@ -43,6 +43,15 @@ the older implementation (without Unicode support) is still available
 as the \module{pre}\refstmodindex{pre} module.
 
 
+\begin{seealso}
+  \seetitle{Mastering Regular Expressions}{Book on regular expressions
+            by Jeffrey Friedl, published by O'Reilly.  The Python
+            material in this book dates from before the \refmodule{re}
+            module, but it covers writing good regular expression
+            patterns in great detail.}
+\end{seealso}
+
+
 \subsection{Regular Expression Syntax \label{re-syntax}}
 
 A regular expression (or RE) specifies a set of strings that matches
@@ -751,11 +760,3 @@ The regular expression object whose \method{match()} or
 \begin{memberdesc}[MatchObject]{string}
 The string passed to \function{match()} or \function{search()}.
 \end{memberdesc}
-
-\begin{seealso}
-\seetext{Jeffrey Friedl, \citetitle{Mastering Regular Expressions},
-O'Reilly.  The Python material in this book dates from before the
-\module{re} module, but it covers writing good regular expression
-patterns in great detail.}
-\end{seealso}
-