Fixing the unit tests

There is a disconnect when overriding the `songsDir` for test in that `require` uses a different cwd path than `fs.readdir`.  By explicitly calling out the folder in test (just like in runtime), both resolutions are happy and the tests are green.
Merge pull request #1 from vandres/master

Added Star Wars theme
Merge pull request #2 from BrianGenisio/master

Fixing the unit tests
add brian to license
Merge pull request #3 from julianduque/patch-1

add brian to license
fix syntax error
v0.0.5
Added Tetris theme