A little bit of colour

A polish update as I start to figure out the feel of this game:

• New Skybox
• Fixed a couple of areas in the world where you could get stuck
• Fixed a couple steps where you couldn't fly up due to the step height
• Added some more geometry to the Pillars area
• Added a couple shortcuts and changed the right-hand routes to the mines beacon
• Ship physics should be a bit more responsive, I've upped the turn speed on it
• When in 2D,  the camera will now look a little towards where you're turning to, to disconnect it somewhat from the ship's rocking and rolling
• Font and style pass on the UI, and more unified colour scheme