Added hoppers to the raidable block list for rule 1.9.
1.9. The following placed blocks may be stolen regardless of whether they make up part of a structure or a beacon: Iron blocks, gold blocks, lapis blocks, diamond blocks, emerald blocks, all ore blocks (except Coal Blocks), enchanting tables, anvils, brewing stands, juke box, rails, heads, banners, shulker boxes, beacons, hoppers, items frames and the items inside them. Also, ender chests providing you break with silk touch pick and don't destroy it. (However, ender chests may be broken on a battleground)