Updated LICENSE year to 2014

Signed-off-by: Samuli Seppänen <samuli.seppanen@gmail.com>
Added $autostart variable to allow enabling/disabling OpenVPN autostart on boot

Note that this feature is implemented by appending a ".disabled" to the config
file suffix, because startup scripts in some operating systems (e.g. CentOS 6)
blindly launch all files with .conf suffix in /etc/openvpn, while others have
fine-grained controls over which VPN connections to start. However, even on
those platforms co-existing with manually configured VPN connections would be
fairly painful without this hack.

Signed-off-by: Samuli Seppänen <samuli.seppanen@gmail.com>