Switch to side-by-side view

--- a/dirbrowser/dirbrowser.cpp
+++ b/dirbrowser/dirbrowser.cpp
@@ -145,7 +145,7 @@
         if (nullptr == cdb) {
             return;
         }
-        cdb->browseIn(u8s2qs(state[tabidx].first), state[tabidx].second);
+        cdb->browseInNewTab(u8s2qs(state[tabidx].first), state[tabidx].second);
     }
     
     ui->tabs->setCurrentIndex(0);
@@ -600,7 +600,7 @@
     addTab();
     CDBrowser *cdb = currentBrowser();
     if (cdb) 
-        cdb->browseIn(UDN, path);
+        cdb->browseInNewTab(UDN, path);
 }
 
 CDBrowser *DirBrowser::cdbFromTabIndex(int i)