Create Exclusive-OR

Here is my try at making a function using a conditional operator for the given code from our assignment2.
Create ExclusiveOR.js

Moved assignment to my student folder and renamed to a javascript file.
Delete Exclusive-OR

Created file in my folder.
Update ExclusiveOR.js

Update to code with (hopefully) correct logical operator.
Merge pull request #77 from seasean/master

Code update