Switch to side-by-side view

--- a/src/excludefile
+++ b/src/excludefile
@@ -17,6 +17,12 @@
 config.cache
 config.log
 config.status
+doc/user/usermanual.aux
+doc/user/usermanual.log
+doc/user/usermanual.out
+doc/user/usermanual.pdf
+doc/user/usermanual.tex-pdf
+doc/user/usermanual.tex-pdf-tmp
 excludefile
 kde/recoll_applet
 lib/librcl.a