Fix issue #23 - Some consoles don't seem to support C-l

lib/layout-helpers.sh

@@ -306,6 +306,6 @@ __go_to_window_or_session_path() {
   local window_or_session_root=${window_root-$session_root}
   if [ -n "$window_or_session_root" ]; then
     run_cmd "cd \"$window_or_session_root\""
-    send_keys "C-l"
+    run_cmd "clear"
   fi
 }