Check output

CHANGES:

• Check public IP before and after connecting to VPN 889dba2
• print ip to screen and fix return cbf78f7
• print connection logs before checking IP ac7791b

it's alive!

• Works around a openvpn install bug on Ubuntu 16.04 #1
• adds auth credentials to vpn connect call #1
• improves usefulness of connect step output 3b0e710

Inital release

Enables to connect to a open VPN server from a circle CI job