python-xapp-1.0.1-bp151.3.1

- Update to version 1.0.1:
  * OS: Turn pkexec support into an opt-in and don't set
    DISPLAY/XAUTHORITY.
  * Add mate-polkit agent support.
  * run_with_admin_privs: Use pkexec as a last ditch chance.
  * Support polkit processname under Ubuntu 17.04.
  * OS: Add is_guest_session() and is_live_session().
- Add python-xapp-xdgsu.patch: Escalate privileges using xdg-su.
- Add xdg-utils to requirements for xdg-su.

- Initial package.