Merge pull request #325 from gwr/gwr/vpn

Update tuntap to (the real) 1.3, fix installed locations, etc.
Merge pull request #326 from gwr/gwr/vpn

These are patches we make to openvpn 2.2.2 (ported onto 2.3.2)
Added easy-rsa
Fix typo in CDDL header
Removed uneeded lines from tuntap and openvpn Makefiles
OpenVPN should depend on easy-rsa package
Merge pull request #327 from xen0l/oi/hipster

Add easy-rsa and some minor tweaks to tuntap and openvpn