TODO: missing music tests

[Matt Layman]

entertainerlib/tests/MusicLibrary_test.py lines 37, 41, 45, 49:

        #TODO: write this test
        #TODO: write this test, set up the playlist test table
        #TODO: write this test, set up the playlist test table
        #TODO: write this test, set up the playlist test table

Unimplemented tests.
    testGetCompactDiscInformation
    testGetPlaylist
    testGetNumberOfTracksOnPlaylist
    testGetTracksOnPlaylist

[Matt Layman (mblayman)]

We'll write the tests when we need the tests. This will probably change when the new backend is in place. For now, the tests are being removed.