2/11 - 2/12 - 2/13 - 2/14

2/12
Added an area above the calculator answer to keep track of what's being
done.

2/13
Added a decimal button, Sqrt button, Square(x) button, and a button to
"text to speech" what's on the screen to the user.

2/14
Added regex to parse user's voice input.
Still need to:
*Change calculatorHistory label to what was said
*Have the calculator preform event calls using this regex'd input