fixed the new language strings in the dutch translation file
corrected languagefile
Merge pull request #84 from gelsner/master

Consider sort name for collections
fixed: only fill imagetags if they exist
discussion: http://mediabrowser.tv/community/index.php?/topic/9899-issue-with-fanart-links/
fixed nullpointer in code
Merge branch 'master' of https://github.com/MediaBrowser/MediaBrowser.XBMC
Getting backdrops for userdefined collections