Use thesis title and author for PDF metadata

The pdfusetitle and bookmarks options can only be used upon loading
hyperref and not using \hypersetup.

thesis/style/studarbeit.sty

@@ -29,11 +29,9 @@
 \usepackage[font={sf},margin=10pt,labelfont=bf]{caption}
 \usepackage{booktabs}
 % \usepackage{algorithm2e} % load before hyperref for correct links to line numbers with cleveref
-\usepackage{hyperref}
+\usepackage[bookmarks=true,pdfusetitle=true]{hyperref}
 \hypersetup{
-  pdftitle={TODO},
   pdfdisplaydoctitle=true,
-  bookmarks=true,
   %colorlinks=true, % use this if the boxes around links bother you ;)
   pdfstartpage=3,
 }