Update README.md; add notes.md

Change license to GPL3

Implement stability report; fix some bugs

Makefile: allow test target to fail

Fix problems with the Makefile

- It now uses standard git commands, not aliases
- The watch target uses the current branch, not master
- We have only one example, which is run as a module, not a Makefile

Fix incorrect condition in faust._is_signal

Rewrite nonlinear SVF example and fix resulting bugs

Simplify package and import structure

Thanks to Alex Dzyoba [1] for the concise guide.

[1]: http://alex.dzyoba.com/blog/python-import/

Rewrite using matrices; add stability checking

remove pypi distribution support

tests: remove tests for code to be rewritten

.gitignore: add __pycache__

begin rewrite

math.py: comment on stability condition algorithm

math.py: Add ODE stability condition method

A linear ODE is stable if the roots of its characteristic
equation have negative real part. We handle nonlinear ODEs
by linearizing them at an operating point.

initial work on stability analysis

Makefile: remove more stuff for distclean target

setup.cfg: fix and add some stuff

examples/nonlinear-svf-faust: fix bad import path

remove old file