Implement crossover; cleanup code
Implement NN brain mutation
Per-type custom food rendering; clean up client
Make registry keep track of creature pos
Add mating
Merge branch 'master' of https://github.com/Frobb/artifice into Frobb-master

Conflicts:
	apps/artifice/src/artifice_creature_registry.erl
Merge branch 'master' of https://github.com/Kewso/artifice

Conflicts:
	apps/artifice/src/artifice_chunk.erl
Fix energy costs per action
Figting random implemented