breathing room
clearing random facts for Lions, we don't have any yet
added roar function, making sure it works
mutating properties - big words for a simple action
added randomFact
update view to call randomFact
Added LionCub, used in ViewController
added rubLionCubsBelly function, call it
override roar
added LionCub array, added femaleLionCub
more explicit code, changed things to let that could be. Interesting that structs have to be var'd
override randomFact
lionCub is alpha male
show LionCubs
make updateAnimal DRY
crap, didn't update the animal