python-pure-sasl-0.5.0-bp151.3.1

- Update to 0.5.0
  * Added EXTERNAL mechanism
  * Fix QOP checks in python3
  * Improved error handling when the kerberos module is not
    installed
  * Fix python3 bug using auth-conf with GSSAPI
  * Add GSSAPI "extra" with kerberos dependency
- Use %license macro

- Package doc files

- Init, v0.4.0