This was included in the ul, which doesn't make sense. Includes a
necessary CSS fix and makes the markup for that header easier to
adapt to 2.x markup.
* Announce article: check for real URL lenght, as twitter makes it
longer sometimes.
* Tweeter: Count chars directly after a short URL was added. Counts URLs
as twitter URL length always.
* Article announcement with "uncompressed" urls did not work very well.