Sound : clean sound files
RenderDino : add animation when dino die
Test when detect collisions with spikes
Merge branch 'develop' of https://github.com/Symptogen/Symptogen into develop

Launch animation and sound when dino dies.

Conflicts:
	src/EntityManager.cpp
	src/EntityManager.h
	src/physic/ContactListener.cpp
	src/physic/ContactListener.h