Add LOFAR logo

Use the "lofar" option to the astron document class to switch to the LOFAR
logo instead.

texmf/tex/latex/astron/astron.cls

@@ -81,6 +81,12 @@
   \@hastypetrue
 }
 
+% use the LOFAR logo
+\newcommand{\logo}{\includegraphics[width=8cm]{astron-logo}}
+\DeclareOption{lofar}{
+  \renewcommand{\logo}{\includegraphics[width=6cm]{lofar-logo}}
+}
+
 % Short documents don't have a title page; just stick the title next to the logo on the first page.
 \newif\if@shortDoc
 \@shortDocfalse
@@ -181,7 +187,7 @@
   \end{tabular}
 }
 
-\rhead{\includegraphics[width=8cm]{astron-logo}}
+\rhead{\logo}
 \cfoot{\textbf{\large{}\docProgram{}}}
 \renewcommand{\headrulewidth}{0pt}
 \renewcommand{\footrulewidth}{1pt}