new file:   libs/behavior/follow_wall.c
	modified:   libs/behavior/follow_light.c
	modified:   libs/behavior/ligth_stop.c
	modified:   libs/shared/global.c
	modified:   libs/shared/photo_cell.c
	modified:   libs/shared/screen.c
	modified:   rw.layout
Merge branch 'master' of https://github.com/Phirxian/rug-warrior