Make the desert shake during doom

Depends on ninjadev/nin#55
Smooth lava balls into the ground @ zero-intercept
Decrease rgb shift in lens distortion
Merge pull request #42 from ninjadev/less-lens-distortion

Decrease rgb shift in lens distortion
Merge pull request #43 from ninjadev/desert-shake

Make the desert shake during doom
Merge pull request #44 from ninjadev/volcano-ball-impact-animation

Smooth lava balls into the ground @ zero-intercept
Delete some unused assets
Fix res reference
Merge pull request #45 from ninjadev/clean

Delete some unused assets
Add scanline fx layer
Merge pull request #46 from ninjadev/pathfix

Fix res reference
Merge pull request #47 from ninjadev/scanline

Add scanline fx layer
Add train
Merge pull request #48 from ninjadev/train

Add train
Add glow shader

This shader makes the scene glow a bit based on a convolution defined in
the uniforms of the shader.
Add hexagon scene

This is an early version of the hexagon scene that shows a couple of
colored hexagons in a row
Tweak randomness in hexagons

The hexagons' position now takes advantage of randomness with a seed.
Add writable hexagons

You can now write on a hexagon by sending a text-parameter to
createHexagon.
Change cylindergeometry to circlegeometry

Merge hexagonlayer with the rest of the demo
Add pictures for introtext