mld2p4:

Fixed prerequisites of mld2p4 build.

docs/html/node12.html

@@ -731,7 +731,7 @@ $w = y_1$;
 \begin{tabbing}
 \quad \=\quad...
 ...= y_l+r_l$\\
-\textbf{endfor} \\ [1mm]
+\textbf{endfor} \ [1mm]
 $w = y_1$;
 \end{tabbing}}
 \end{minipage}}">

docs/html/node20.html

@@ -74,7 +74,7 @@ This routine computes <!-- MATH
 <IMG
  WIDTH="118" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
  SRC="img96.png"
- ALT="$y = op(M^{-1})\, x$">, where <IMG
+ ALT="$y = op(M^{-1})  x$">, where <IMG
  WIDTH="23" HEIGHT="15" ALIGN="BOTTOM" BORDER="0"
  SRC="img59.png"
  ALT="$M$"> is a previously built

docs/html/node6.html

@@ -98,7 +98,7 @@ The following base libraries are needed:
  HREF="node25.html#PSBLASGUIDE">14</A>,<A
  HREF="node25.html#psblas_00">15</A>] Parallel Sparse BLAS is
   available from 
-<BR><code>http://www.ce.uniroma2.it/psblas</code>; version 2.3
+<BR><code>http://www.ce.uniroma2.it/psblas</code>; version 2.3.1
   (or later) is required. Indeed, all the prerequisites
   listed so far are also prerequisites of PSBLAS.
   To build the MLD2P4 library it is necessary to get access to