Changed title, added style-author, edit description

Deleted "extended" in the title – it might confuse people. Added Sebastian Karcher as an author of the style. I just want to mention, that it is possible to add pages or timecode to the rtf and the "rtf scan" feature will add it to the citation. 
Add pages like this:
{author, "title", year, 21}
{author, "title", year, 21-24}
And timecode like this:
{author, "title", year, 00:02:34}