Critter: made drawWhisker() and draw3Whiskers() private. Added
draw6Whiskers() method 
Cat and Rabbit: in drawNose, replaced 2 invocations of draw3Whiskers()
with a single draw6Whiskers() method
Merge branch 'master' into catsrabbits
Merge branch 'master' into catsrabbits
let BatsEverywhere draw CritterGroups