New brand identity for Cuberite.

[bearbin]

16x16 is necessary because it's used for website favicons, so it's essential that it look ok when shrunk down, but normal presentation would be larger.

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Public domain is legally iffy. It would be much better to use something like CC0, but most of the Creative commons licenses would do.

Problem with CC (not CC0) is that it requires attribution. Attribution everywhere a logo is used is a bit silly.