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-* 2019-11-04: `comma` key is now `,`, `period` key is now `.`
-* 2018-08-28: `LampObject` and `LampData` is now `LightObject` and `LightData`
-* 2018-08-28: Use `new Vec4(0,0,1)` (or `Vec4.zAxis()`) instead of `Vec4.up()`
-* 2018-08-28: `Vec4.lerp` is no longer static, use `var v = new Vec4(); v.lerp(from, to, s)`
-* 2018-08-21: `Vec4.lerp(to, from, s)` is now `Vec4.lerp(from, to, s)`
-* 2017-12-10: Use `iron.math.Vec4.distance()` instead of `iron.math.Vec4.distance3d()`.