Added FloatArray class
Added search method to Biosphere

Change Biosphere.search() to return all Things and let the creature sort
them?
Creature sorts list of things

sort method needs to be moved to Creature.
findNearest method needs to be moved to Creature.
Search method moved to Biosphere

sorting of predators and prey done in Creature
Forgot to revert size and creature numbers

Forgot to revert size and creature numbers from testing values
Merge remote-tracking branch 'origin/search_in_biosphere'

Conflicts:
	Biosphere.pde
	Creature.pde