New PvP toggles

After a brief but substantiated discussion about PvP, it was decided that allowing players to choose whether they would like to have PvP enabled was the best course of action. As such, the following commands have been added:

• /pvp - This command toggles your PvP setting. You can also use /pvp on or /pvp off to explicitly set it. Default on.
• /claimpvp - This command allows you to toggle whether PvP protection is allowed in your claim. Claims have PvP protection by default.

Both of these toggles are persistent, meaning that they won't reset when you disconnect.

We hope these changes are satisfactory for both PvP and non-PvP players. Feel free to leave a comment on this post if you have any suggestions or other ideas.