Enable/disable registry inspection directly in the registry management form, in addition to the preferences form.
Replaced manual request/response initialization with front controller plugin and PHP's standard cache control mechanism.
Use url view helper to compose urls.
Use redirector helper for all redirects, eliminating problems with remaining ZF-style parameters.
Detect doctype (HTML/XHTML) for proper closing tags on empty elements.
Suppress submit parameter in form-generated URL.
Escape attribute values automatically - fixes invalid markup for href attributes.