Almost there, guys.
Merge branch 'master' of https://github.com/COP3503group92/CalculatorProject.git
Added simplifys to Exponentiate.cpp
Changed Evaluate-> to ee-> in beginning of Add.cpp
changes changes
Cleaned Up Some Headers.
Changed Expression-> to ee-> in Subtract.cpp
Almost there
Merge branch 'master' of https://github.com/COP3503group92/CalculatorProject.git