poezio-0.11-bp151.3.1

- fix package license and add license file to the package
- run through spec cleaner
- add poezio-remove_shebang.patch
- add README.rst to the package

- bump to 0.11
  see CHANGELOG for full list of changes (which happened over 7 years)
- requires python3-aiodns now, requires python-slixmpp instead of
  python-sleakxmpp
- split documentation

- initial version (0.7.1)