Focus on editor in 4ms

Wasn't focusing after switch, this solves the issue

lib/ice-coder.js

@@ -1518,7 +1518,7 @@ var ICEcoder = {
 			cM.getWrapperElement().style.display = "block";
 
 			// Focus on & refresh our selected instance
-			if (!noFocus) {cM.focus();}
+			if (!noFocus) {setTimeout(function() {cM.focus();},4);}
 			cM.refresh();
 
 			// Highlight the selected tab