Updated Fonts to support extended Latin Alphabet from FontSquirrel.

It seems that under http://www.fontsquirrel.com/fonts/open-sans >
Webfont Kit > Subset the default selection is only the english subset.
New one is "Western-Languages (MacRoman)".
If that's not enough download UTF-8.
Use context sensitive font-declaration and remove unused font-styles

Changed font-declaration, so the browser knows which combination to use if
there is a construct like <em>Hello <b>World</b></em>.
Also deleted Unused fonts: Semibold-Italic, Light-Italic, ExtraBold
since they were never Used (<strong>,<b> only use Bold).
Show some basic Tags in Feed (em, strong, bullets)

Display em,strong,b,i,blockquote and bulletpoints in Feeds. After being
reset in - well - reset.css certain elements get never restyled so that
<em>, <li> and <strong> looked like normal text -> loss of information.

Also adds visual clues for quotes and some space between paragraphs.