Editor: scaleLock enabled by default.

editor/js/Sidebar.Object3D.js

@@ -132,7 +132,7 @@ Sidebar.Object3D = function ( editor ) {
 	// scale
 
 	var objectScaleRow = new UI.Panel();
-	var objectScaleLock = new UI.Checkbox().setPosition( 'absolute' ).setLeft( '75px' );
+	var objectScaleLock = new UI.Checkbox( true ).setPosition( 'absolute' ).setLeft( '75px' );
 	var objectScaleX = new UI.Number( 1 ).setRange( 0.01, Infinity ).setWidth( '50px' ).onChange( updateScaleX );
 	var objectScaleY = new UI.Number( 1 ).setRange( 0.01, Infinity ).setWidth( '50px' ).onChange( updateScaleY );
 	var objectScaleZ = new UI.Number( 1 ).setRange( 0.01, Infinity ).setWidth( '50px' ).onChange( updateScaleZ );