run the NetLogo language tests (TestCommands/Reporters)
trivial code improvement
in command tests support "T>" "P>" "L>"

and note that a lot more tests pass now
fix 'sum []' to report 0 instead of blowing up
fix 'mod' to handle negative numbers right
fix handling of 'nobody' in language testing
if a test is expected to fail but doesn't, fail

needs an updated NetLogo jar because we need the fix to Finder
in NetLogo/NetLogo@07de02783856696f108313bb4e62f6e802e82582)
throw a better error message when command tasks are used
don't allow canceled tests to also have redundant excuses
minor code improvement
in engine, fix equality to be recursive
adjust default world dimensions to match NL

making more tests pass, yay!
fix how 'random' handles negative numbers
reclassify some failing command tests
Merge branch 'master' into language-tests
Merge branch 'master' into language-tests
redo language test tasks using sbt 0.13.1 features
Merge pull request #48 from NetLogo/language-tests

run the NetLogo language tests (TestCommands/Reporters)