Switch to side-by-side view

--- a/src/qtgui/guiutils.cpp
+++ b/src/qtgui/guiutils.cpp
@@ -134,6 +134,11 @@
     SETTING_RW(prefs.abssep, "/Recoll/prefs/reslist/abssep", String,"…");
     if (!writing && prefs.abssep == "")
 	prefs.abssep = "…";
+    SETTING_RW(prefs.reslistdateformat, "/Recoll/prefs/reslist/dateformat", 
+	       String," %Y-%m-%d %H:%M:%S %z");
+    if (!writing && prefs.reslistdateformat == "")
+	prefs.reslistdateformat = " %Y-%m-%d %H:%M:%S %z";
+    prefs.creslistdateformat = (const char*)prefs.reslistdateformat.toUtf8();
 
     SETTING_RW(prefs.reslistfontfamily, "/Recoll/prefs/reslist/fontFamily", String,
 	       "");