Handle backspaces in console, to make QuickCheck legible.
Handle backspaces in console, to make QuickCheck legible.

parvmor/codeworld,three/codeworld,tgdavies/codeworld,google/codeworld,venkat24/codeworld,google/codeworld,alphalambda/codeworld,three/codeworld,parvmor/codeworld,tgdavies/codeworld,venkat24/codeworld,alphalambda/codeworld,three/codeworld,pranjaltale16/codeworld,venkat24/codeworld,tgdavies/codeworld,parvmor/codeworld,pranjaltale16/codeworld,pranjaltale16/codeworld,alphalambda/codeworld,google/codeworld