[4.1] Ext.app.Controller.hasRef - use Ext.Array.indexOf to find reference

[LesJ]

The [].indexOf method below is not supported in some JS implementations. It should be replaced by Ext.Array.indexOf to make the hasRef method more robust.

Ext.define('Ext.app.Controller', {
    ...
    hasRef: function(ref) {
        return this.references && this.references.indexOf(ref.toLowerCase()) !== -1;
    },
    ...

EDIT: 6/28/12
... or better yet use Ext.Array.contains

[mitchellsimoens]

Thanks for the report.