Added bit about needing libgl and libglu.
Added bit about needing libgl and libglu.

chrisidefix/devide.johannes,codester2/devide.johannes,fvpolpeta/devide.johannes,nagyistoce/devide.johannes,ivoflipse/devide.johannes,ivoflipse/devide.johannes,chrisidefix/devide.johannes,fvpolpeta/devide.johannes,nagyistoce/devide.johannes,codester2/devide.johannes