Fix HTML unescaping in title of ArticleFragment.

The title of an article when displayed in the ArticleFragment is HTML escaped, as opposed to being properly un-escaped as in HeadlinesFragment (currently around line 588).

This produces strings with "&quot;" instead of the quote character, for example. 
Merge pull request #7 from jrupac/fix-html-escaping

Fix HTML unescaping in title of ArticleFragment.