cleaning
Simplex noise improvement

Removed the simplex edges
100 000 000 calls
Benchmark 3d: 3.333 -> 2.500
Benchmark 2d: 2.365 -> 1.630
octave is now an unsigned int integer
Merge branch 'procedural' into develop

Conflicts:
	client/inc/Chunk.hpp
	client/src/Chunk.cpp