Napalm-junos

Fix stupid template bugs: https://github.com/napalm-automation/napalm-junos/pull/108

Users' config Jinja templates: https://github.com/napalm-automation/napalm-junos/pull/103

Python3 support: https://github.com/napalm-automation/napalm-junos/pull/98 thanks to ktbyers
New method: `ping` https://github.com/napalm-automation/napalm-junos/pull/97 thanks to pkleanthous

Fixed https://github.com/napalm-automation/napalm-junos/issues/91: `get_route_to` fails if protocol is not specified
Fixed https://github.com/napalm-automation/napalm-junos/issues/92: `get_snmp_information` not returning `location` and `contact`

- Migrated to the new testing framework: https://github.com/napalm-automation/napalm-junos/pull/77
- New methods: `is_alive` (https://github.com/napalm-automation/napalm-junos/pull/80) and `get_network_instances` (https://github.com/napalm-automation/napalm-junos/pull/87)
- `lock` renamed to `_lock` and `unlock` renamed to `_unlock`
- Fixed Jinja templates: https://github.com/napalm-automation/napalm-junos/pull/85
- Fixed 84 (`.get_route_to() does not support connected/direct routes`): https://github.com/napalm-automation/napalm-junos/pull/86
- Doc auto-build: https://github.com/napalm-automation/napalm-junos/pull/89

Solves https://github.com/napalm-automation/napalm-junos/issues/74