Merge pull request #2 from tbreiner/master

After class on Wednesday. We've fixed the space issue and deleted unnece...
Wednesday night

resolved leading zeroes, “clear” after Error, other misc changes and
tweaks, all in NegablahblahCalculator.java
Merge branch 'master' of https://github.com/SaraWeinstein/Negadecimal-Calculator

Conflicts:
	NegadecimalCalculator.java
Working session Thursday afternoon

fixed all input and output issues
theresa filled out some tests, but there's an error if we try to divide a negative by a bigger negative. the divide function works but evaluate isn't returning anything at all.