Updated Heap.ipp

I implemented the constructor, destructor, and grow.
I implemented the bubbleUp and add methods.
I added an else statement to bubbleUp and a comment at its function call to justify certain calculation choices.
I implemented trickleDown.
I implemented remove()
I have cleaned up some things. Everything is working until I get to the last item. I am trying to fix that.
I'm so close!!!
I fixed the logic error in the remove() method. Thank you Dr. Brinkman! :)
I completed the README.md file.
Merge pull request #8 from proctopj/proctopj

Assignment Complete