Well, I had to change quite a bit and hopefully this fixes the issue,
that shop items can be collected and that shops aren't saved or reloaded
correctly.
- Fixed Update Checker after reload
- Fixed Update Checker on Minecraft 1.9
- Hoppers shouldn't suck items out of a shop's chest (configurable)
- Hoppers shouldn't pickup a shop's floating item
- Shops shouldn't get destroyed by an explosion (configurable)