ENH: Remove Pyo for Pyglet
ENH: Travis 3.3
FIX: coveralls
FIX: Quieter
ENH: Ensure no clipping
FIX: Docstring
FIX: Fix noise
Merge pull request #112 from Eric89GXL/play-sound

1. ENH: Remove Pyo for Pyglet, add Py3k support.  Ready to rebase the other PRs, @Eric89GXL?