added: "Select None" buttons to custom scraper
fixed: wrong links in YouTube trailer search
added: Apple Trailer scraper
added: new fields to trailer scraper
fixed: issue in TelevisionTunes scraper
code: package update & MovieSet update
fixed: "AddMovie" in dlgEditMovieSet
changed: added backgroundworker for image loading
added: Landscape & ClearArt to main window
added: missing columns in tv show/season/episode
fixed: wrong images for moviesets

all scraper without movieset support are now disabled
added: hide image scraping if no path for movieset set
added: missing "Hide * Column" checkboxes
added: Extrafanarts support for tv shows
changed: renamed extrafanarts for tv show
added: missing image types to "Edit TV Show"
added: more "Do not show *" settings for main window
added/changed: audio & video codec to renamer

$A - Audio Channels (now without codec)
$H - Video Codec
$J - Audio Codec
fixed: IMDB release date
Merge remote-tracking branch 'upstream/master'