Thanks-to: 8e693b3db3

Conflicts:
	roles/common/tasks/main.yml

This reverts commit 6b53da4bdc.

Using a different approach to maintain wheezy compatibility

see: http://undeadly.org/cgi?action=article&sid=2016011414

resolves #453

Change default network buffer size
Should increase tcp tunnel speed for openvpn < 2.3.9
https://community.openvpn.net/openvpn/ticket/461

Per discussion on #429 (after the merge). This project is about encouraging users to run services themselves and not rely on for-profit corporations such as Google.

Fixes #406

add additional comment about `tun-mtu` parameter in openvpn config template

- google dns setting for client
- verb level
- mtu
- TLS settings

Thanks-to: 8e693b3db3

because why the fuck not?

Not awesome. We need a better alternative, ideally one with a better security stance.

Formatting the task names.

Use newer native "write HTTP" plugin to send metrics to Librato, if configured.