Cleaning code
Adding Debug's function for printint labels (if any)
Debugging labels. Fixes on Javadoc and code
Adding new zero-cost energy
Little correction in the top
ASK is costless now
Making Returns interface an enum
Action now using Returns as a enum
Javadoc, BASE and ROBOT as directions and new Error assignments
Updating TODO
menu
Merge branch 'master' of github.com:renatocf/MAC0242-PROJECT
Erro concertado
Merging master in unstable