[keycloak-user] IE9 compatibility

Hi all, we are currently in the process of going live with a web application that uses keycloak. During our initial tests we encountered and fixed some issues with Internet Explorer 9. Since the changes we applied don't require any API changes and only address the way keycloak.js communicates with the embedded login status iframe (login-status-iframe.html), we'd love to see a 1.0.5.Final release with our patch (see attachment). In addition to the patch, we added the following HTML5 cross browser polyfills: * https://github.com/davidchambers/Base64.js * https://github.com/devote/HTML5-History-API Let me know if you have any additional questions! Cheers, Nils