Merged Brian and Zach's changes, cleaned Wes's commit and pruned some non-essential class files. If you have any problems running the code with this commit, try this:

In Eclipse, go to "Project" menu, go to "Clean..." and make sure that the GymGuide project is cleaned.
Added Testing Repository Code

This testing code is UNtested. It's in a separate folder than the main code branch, however, so it should be fine!
Clara's MuscleExercise, WorkoutCreationArray, etc changes