Addressing #189 renames reference-examples, tweaks select issue in vanilla app.

reference-examples/vanillajs/js/app.js → vanilla-examples/vanillajs/js/app.js

@@ -91,7 +91,7 @@ function todoContentHandler( event ) {
     div.className = 'editing';
 
     inputEditTodo = document.getElementById( 'input_' + todoId );
-    inputEditTodo.focus();
+    inputEditTodo.select();
 }
 
 function checkboxChangeHandler( event ) {