Add clearfix for nerddinner content provider to ensure contentbox has height and surrounds map etc

Signed-off-by: cmaish <mail@christophermaish.com>
Fix for audio URIs to prevent onerror javascript being introduced via percent encoding.

Signed-off-by: cmaish <mail@christophermaish.com>
Fix for collapsible content windows (eg images) to prevent javascript being introduced via percent encoding.

Signed-off-by: cmaish <mail@christophermaish.com>
Prevent urls containing " from being dropped directly into anchors on the page.

Signed-off-by: cmaish <mail@christophermaish.com>