define current ese year once in macro defs

manual.tex

@@ -19,6 +19,13 @@
 
 \input{macros.tex}
 
+\hypersetup{
+    pdfauthor={FSR Informatik der TU Dresden},
+    pdftitle={The Manual - ESE \eseyear},
+    breaklinks=true, colorlinks=false, pdfborder={0 0 0},
+  pdfencoding=unicode
+}
+
 % we need this dummy counter to make a label at the spieleabendplakat
 \newcounter{dummy}
 
@@ -46,7 +53,7 @@
 \immediate\newwrite\linklistfile
 \immediate\openout\linklistfile=kopimi.htaccess\relax
 \immediate\write\linklistfile{RewriteEngine On}
-\immediate\write\linklistfile{RewriteBase /2021}
+\immediate\write\linklistfile{RewriteBase /\eseyear}
 
 \include{texte/zeitplan}
 \include{texte/inhaltsverzeichnis}