First commit of template GUIs

Rough representation of how the GUIs will eventually turn out.
Initial testing for passing figure handles to sort functions.

Also fixed a problem with MergeSort not recursing (still may not be
functional, though).
Fixed issue with MergeSort not recursing onto itself
Merge pull request #12 from ernstki/dev

Merge in changes from @ernstki's 'dev' branch (including figure handle tests)
Updated AlgorithmRace.fig (non-functional mockup)
Merge pull request #13 from ernstki/dev

Updated AlgorithmRace.fig (non-functional mockup)
Update README.md
Minor UI updates to AlgorithmRace.fig
Merge pull request #2 from ernstki/master

Provides a mockup of the "algorithm race" UI