Assignment to Jax.Camera#rotation does not fire `matrixUpdated` event

[sinisterchipmunk]

Assume we want to assign a quaternion directly to a camera, instead of rotating our way into the desired state:

@model.camera.rotation = [0.215122, 0.907300, 0.328824, 0.149720]

This does not fire the internal matrixUpdated event which is used to recalculate the relevant matrices, and anything else based on changing camera state (its frustum, for example).

A workaround is to fire the event manually:

@model.camera.rotation = [0.215122, 0.907300, 0.328824, 0.149720]
@model.camera.fireEvent 'matrixUpdated'

[sinisterchipmunk]

Should be fixed in the new Jax.Camera, and if not, it's invalid due to a different API and internal logic. A new issue can be opened if similar issues arise.