audio/aubio: Update to 0.4.7
- Allow building with python 3.x
- Add DOCS option for general documentation built by sphinx
- Add MANPAGES option build/install manpages since it requires extra deps
- Add TEST option and disable building tests by default
- Whitespace align options and separate blocks for better readability
audio/py-aubio: Update to 0.4.7
- Allow concurrent installation