removed unnecessary/untrusive a4paper option;

--- a/lib/texinputs/pdfsetup.sty	Thu May 15 21:08:25 2008 +0200
+++ b/lib/texinputs/pdfsetup.sty	Thu May 15 22:02:05 2008 +0200
@@ -6,5 +6,4 @@
 
 \usepackage{color}
 \definecolor{linkcolor}{rgb}{0,0,0.5}
-
-\usepackage[a4paper,colorlinks=true,linkcolor=linkcolor,citecolor=linkcolor,filecolor=linkcolor,pagecolor=linkcolor,urlcolor=linkcolor]{hyperref}
+\usepackage[colorlinks=true,linkcolor=linkcolor,citecolor=linkcolor,filecolor=linkcolor,pagecolor=linkcolor,urlcolor=linkcolor]{hyperref}