Currently emoticons are retrived in textual form eg <i><u>smile
emoticon</u></i> which is not really visual... so let's convert them back
as ASCII emoticons eg ':)'. This works using a hardcoded table mapping
emoticon names to their visual representation, and the regular expression
match the two words because eg in french facebook will display
<i><u>émoticône smile</u></i> so we need to test both. Unknown emoticon
descriptions will be left as is.
Retrieve author display name from page title
Build short readable title using name and content
Convert relative links into absolute links
Remove attributes from </a> tags (may cause issues)
Remove onclick and onmouseover (javascript code)
Retrieve url of first image of post as thumnail
Use author avatar as thumnail if no first image
Use display name in feed name: name - Fb bridge
Minor code indent fixes and use simple quotes
