Simplified CHANGES file and added pynote 0.1b4.
Simplified CHANGES file and added pynote 0.1b4.

Signed-off-by: Stefan Tatschner <eb0877843acc39f8ef6f7269937dee931c372d23@sevenbyte.org>

arabar/pynote,millerdw06/pynote,rumpelsepp/pynote