Clean floor names
Merge branch 'develop' of https://github.com/Symptogen/Symptogen into develop
Some clean
Merge branch 'develop' of https://github.com/Symptogen/Symptogen into develop

Conflicts:
	assets/data.xml
	assets/map/level1.xml
	assets/map/level2.xml
	assets/map/sprites/Carrelage_Sample1_AMELIORE.png
	assets/map/sprites/basicFloor2x2.png
	assets/map/sprites/basicFloor_2x2.png
Add needed sprites