Additions Mod

- Added 13 commands
- Added infinity requires ammo setting to bows and guns
- Added way to add new folders to load addons from
- Fixed structures not loading correctly in addons
- Fixed wall blocks adding invalid items to the creative menu
- Fixed null pointer exception while zipping an addon
- Fixed bash damage death message
- Fixed block harvest levels not supporting any level properly
- Fixed messages in several texture selectors

- Updated chinese translation file (thanks LiuMang!)