MediaWiki:External image whitelist

http://thebrotherhoodofevilgeeks.files.wordpress.com/2013/12/big-red-button.gif http://vignette3.wikia.nocookie.net/common/avatars/b/b4/25857913.png/revision/latest/scale-to-width-down/150?cb=1435384732&format=jpg
 * 1) Leave this line exactly as it is
 * 2) Put regular expression fragments (just the part that goes between the //) below
 * 3) These will be matched with the URLs of external (hotlinked) images
 * 4) Those that match will be displayed as images, otherwise only a link to the image will be shown
 * 5) Lines beginning with # are treated as comments
 * 6) This is case-insensitive
 * 1) Put all regex fragments above this line. Leave this line exactly as it is