Getting some more equality-based tests going
Changing  to not return a value...
Improving handling on coordinate wrapping/negative coords
Making some breed equality tests pass

Conflicts:
	src/main/coffee/engine.coffee
Classifying failing test
Fixing language tests based on how labels were being updated
Fixing CoffeeScript syntax use in topology code for a lang. test
Categorizing failing lang. test
Fixing lang. test by adding `in-radius` for patches
Updating note to self
Adding kinds to agentsets to fix agentset equality

Breeds don't actually factor into equality of agentsets.  Apparently, an
agentset of mice and an agentset of turtles are equal if they contain
the same agents (which makes sense).

Conflicts:
	src/main/coffee/engine.coffee
Ensuring all new turtles are added to `turtles` breed to fix a lang. test
Improving now-silly code
Insignificant code tweak
Fiddling with the list of failing lang. tests
Removing erroneous entry from list of failing lang. tests
Preventing  mutable state from leaking out