Fix #1206. More checks in postproc.
Refactor ReleaseImage.php, fix bug where it wasn't deleting preview images and it was trying to delete imdb images, don't use imagecreatefromstring 2 times.
Use string to lower in case it's HTTP
Destroy string image if height or width not set.
Only destroy it after the image is created.
Don't use imagecreatefromstring if not resizing.
Check for duplicate predb rows when inserting usenet crawler.
Merge pull request #415 from nZEDb/dev

Dev