Break authors across multiple lines, use version date in documentation

fithesis.dtx

@@ -419,8 +419,9 @@
 %
 % \title{The \textsf{fithesis4} class for the typesetting of theses written
 %   at the Masaryk University in Brno}
-% \author{Daniel Marek, Jan Pavlovič, Vít Starý Novotný, Tereza Vrabcová, Petr Sojka}
-% \date{\today}
+% \author{Daniel Marek, Jan Pavlovič, Petr Sojka,\\
+%         Vít Starý Novotný, Tereza Vrabcová}
+% \date{2024/03/06}
 % \maketitle
 %
 % \begin{abstract}