Moon phase checking bugfix

[michael-s-crouch]

Hi! I was impressed by how fast you worked on the bug I reported on the forums (burning to death while crafting) and I started taking a look at the code. This is my first time using git for collaboration, I hope I'm doing this right. I started with a really simple fix -- the code for moon phases was setting the moon to half-full every time, instead of checking the phase.

[cwc]

The main bug behind this request (moon phase) has been fixed in master. Between that and the request's size, it's probably safe to close this.