Replace X and Y in geometry view with matrix.

[AWoloszyn]

This allows unlimited rotation in both axes.
Fixes #1215

[pmuetschard]

I don't like it. I was going to say on the bug that its WAI, but I'm open to discussion.

The point of the cylinder camera model is to prevent rotation over the top/bottom as that would invert the horizontal drag. In Tom's case, all he has to do is press the z-up button and everything would look like the way he wants.

BTW, the only thing required to get rid of the limits is to remove the angleX = Math.min(Math.max(angleX, -90), 90); line.

[AWoloszyn]

As a note, this method doesn't invert the horizontal drag after rotating over the top/bottom.

[ben-clayton]

After consideration it's clear that different people prefer different camera modes. Can I suggest we add an option to the settings dialog for camera style? If we do that, can I also add my preferred camera style - WASD?