Release v0.6.0

Changelog:

- Implement a pythonic way of signing a message using
  patatt.rfc2822_sign(bytes)
- Work around inconsistencies in git-mailinfo when there are in-body
  headers and the message uses CRLF endings
Prepare for patatt-0.6.0

Update versions to release patatt-0.6.0, required for b4 0.9.

Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
3 files changed