fix bug in safari browsers

program/js/app.js

@@ -265,7 +265,6 @@ function rcube_webmail()
 
     this.in_message_list = true;
     e.cancelBubble = true;
-    if (e.stopPropagation) e.stopPropagation();
     };
 
   // reset last clicked if user clicks on anything other than the message table
@@ -293,7 +292,7 @@ function rcube_webmail()
       }
       if (!new_row) return false;
       scroll_to = new_row.offsetTop;
-    } else {return false};
+    } else {return true;}
 	
 	if (mod_key != CONTROL_KEY)
 	  this.select_row(new_row.uid,mod_key);