Add normals to mesh generation func
Ocean appearance tweaks
Set bundle_files to 3 in setup.py, fixes #1
Draw photons directly in photon map shader instead of using a histogram stage.
Reduce ocean floor mesh tiles to single quad
Clean up caustic generator.
Enable FBO in caustic generator
Animation period set locally in scene.py
Remove unused reference to random module
Add option for fixed timestep rendering in main.py
Add textures to water surface
Tidy up photonMap shader.
Remove unused shaders.
Set default ocean depth to 60 units.
Add ability to save image sequences of the caustic texture.
Add options.ini file
Add shader recompliation switch for ocean shaders
Add refraction effect to water's surface & modify matrix/vector class interface slightly.
Add refraction effect to water surface, closes #5