Napalm-panos

- Updates to napalm core

New panos driver.

Supported methods:
- http://napalm.readthedocs.io/en/latest/support/index.html#configuration-support-matrix
- http://napalm.readthedocs.io/en/latest/support/index.html#getters-support-matrix

- Caveats: http://napalm.readthedocs.io/en/latest/support/panos.html