Adding a test file for everyone to see.

Please feel free to edit this. In fact, do it for homework.
Hohmann Transfer Orbit

Edited to simplify power calculations
HTML code that runs and displays JS calculation

This is the starting point for making our online HTML/JS calculator.
Contains a time calculator for a Hohmann Transfer Orbit between the
Earth and Mars.
Merge pull request #1 from vertuli/master

Adding a test file for everyone to see.
Initialize everything
Merge remote-tracking branch 'upstream/master'