Make TitlePermalinkProvider benefit from the latin1 curation of the Latin1SeoPermalinkProvider.

Accented characters (é for example) are not deleted from the title anymore but are replaced by their not accented counterpart.
While filtering the HTML, also removes the content of script and style tags.

This allow scripts and/or styles locals to a blog entry to be hidden in the search results.
OpenGraph and twitter card implementation.