Convert "See also" section to use \seetitle.

Doc/lib/libsha.tex

@@ -47,10 +47,12 @@ A sha object has all the methods the md5 objects have, plus one:
 
 
 \begin{seealso}
-  \seetext{The Secure Hash Algorithm is defined by NIST document FIPS
-           PUB 180-1: \citetitle{Secure Hash Standard}, published in April
-           of 1995.  It is available online as plain text at
-           \url{http://csrc.nist.gov/fips/fip180-1.txt} (at least one
-           diagram was omitted) and as PostScript at
-           \url{http://csrc.nist.gov/fips/fip180-1.ps}.}
+  \seetitle[http://csrc.nist.gov/fips/fip180-1.txt]{Secure Hash Standard}{
+            The Secure Hash Algorithm is defined by NIST document FIPS
+            PUB 180-1:
+            \citetitle[http://csrc.nist.gov/fips/fip180-1.txt]{Secure
+            Hash Standard}, published in April of 1995.  It is
+            available online as plain text (at least one diagram was
+            omitted) and as PostScript at
+            \url{http://csrc.nist.gov/fips/fip180-1.ps}.}
 \end{seealso}