issue #189  fixed
Merge branch 'origin/dev/LoadLevelAdditive'
issue #60  Commented variables used for debug
issue #60  Commented activeTransport in ReactionEngine
issue #53   DisplayedBioBrick inherit from GenericDisplayedBioBrick
issue #110  clean Hero.cs started
issue #64   Activity removed from EquipedDisplayedDevice.cs
issue #65    All the alter of the life are now manage by the Life class
LifeAnimationLogo also managed by the Life class.
uncomment some variables in ReactionEngine
issue #65 fixed Life script. Some alteration in energy script
issue #75    _molecules is now static and initMolcule() only happen on Start.
fixes
Merge branch 'origin/refactor/ReactionEngine'

Conflicts:
	Assets/Scenes/World1.0.unity
fixed DisplayedBioBricks
issue #75 _mediumId is know private
fixed DisplayedBioBrick inheritance
fixed Life refactor, still work to be done: using only _lifeManager and not Hero's _life anymore
fixed Energy refactor, still work to be done
fix
fixed Life refactor