add real level
First management of fonts (only one for the moment)
Death Animation (fever & hypothermia)
Walk Animation (fever & hypothermia)
Stop sprite (fever & hypothermia)
refactoring
Merge branch 'develop' of https://github.com/Symptogen/Symptogen into develop

Conflicts:
	src/GameManager.cpp
Update Power : add method forceExecution().
Details :
- avoid dynamic_cast when we need to call this function for the Sneeze
- enable us to have test functions for other powers (see Fever).
Update Sneeze : dino can't sneeze if hot or cold fever is activated.
Refactoring : catch std::bad_cast exception when dynamic_cast.
Add real lvl 1 and 2
Merge branch 'develop' of https://github.com/Symptogen/Symptogen into develop

Conflicts:
	assets/map/level1.xml
improve movable object displacement with sneeze
(but not perfect)
Merge branch 'develop' of https://github.com/Symptogen/Symptogen into develop

Conflicts:
	src/GameManager.cpp
Merge branch 'develop' of https://github.com/Symptogen/Symptogen into develop
Update Fever : the flames have a good behavior.
Level1 : add a movable object.
Refactoring in persistence directory.
Parser => ParserPlayer
LevelManager => ParserLevel
fix level parsing
Merge branch 'develop' of https://github.com/Symptogen/Symptogen into develop

Conflicts:
	assets/map/level1.xml
	src/physic/ContactListener.cpp
Fixes #98
Add custom hitbox for the dino (from xml file in assets/collision).
Update debugPhysicalEntities function.
Update debugRenderEntities function.
Merge branch 'develop' of https://github.com/Symptogen/Symptogen into develop