Small change to class calculation

gethub made me do this so I could sync.
Merge branch 'master' of https://github.com/cfreih/COSC_350_Oglesby

Conflicts:
	Psuedocode/Calculation.java
Fixed connections between calculation and the handlers

Ensured that arguments and data types match those of the actual
handlers.
Merge branch 'master' of https://github.com/cfreih/COSC_350_Oglesby