Added ghost/player collision detection. Fixed paths from Weltmeister.

When ghosts touch players it's noticed and gets logged (as we don't
know the life/health system yet)

Setting paths form Weltmeister wasn't working due to ARRAYS ARE INDEXED
FROM ZERO YOU FUCK. Anyway Weltmister assigns {cmd: 'die'} as a string
not object, so it needs converting to object before use. Currently done
using eval() which is insecure as it could execute code... but hey it's
from Weltmeister… how bad can that be? (Famous last words...?)