Update script.xbmc.subtitles/resources/lib/services/Undertexter/service.py

Changed sv_subtitle_pattern since it would not find swedish HD subtitles because of changed HTML code at undertexter.se. They had an icon link that was longer than previously causing the addon to not be able to match the subtitle.

I have verified it on my installation of the latest XBMC 12 Frodo - Release Candidate 3 and the subtitle is downloaded and shown correctly.