Initial import to GitHub

The code is derived from 1.0 branch of this Git repository:

<https://github.com/example42/puppet-modules>

Documentation and a few changes have been overlaid on top.

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