ZF2014-03: Potential XSS vector in multiple view helpers due to
inappropriate HTML attribute escaping. Many view helpers were using the
escapeHtml() view helper in order to escape HTML attributes. This release
patches them to use the escapeHtmlAttr() view helper in these situations.
If you use form or navigation view helpers, or "HTML element" view helpers
(such as gravatar(), htmlFlash(), htmlPage(), or htmlQuicktime()), we
recommend upgrading immediately.