Installation of Dejavu3

So far Dejavu has only been tested on Unix systems.

numpy, fundamental package for scientific computing with Python
six, compatability vor py2 and py3
SQLAlchemy, for taking the FFT of audio signals
PyAudio, for grabbing audio from microphone
matplotlib, used for spectrograms and plotting
pydub, a Python ffmpeg wrapper
setuptools python setuptools
scipy, used in peak finding algorithms
ffmpeg, dealing with media files
_{maybe use a virtualenv howto?}