* Scripts and text mention openvpn only in the context of examples.
* Firewall commands slightly tweaked: Important blocking rules move to top. Removed superfluous check for qvpn OUTPUT rule.
* Clarifications, especially mentioning that NM shouldn't be enabled for iptables/scripts option (this was causing DNS to fail for people who tried both NM and scripts).
* Tells the user when and what they should test (iptables/scripts).
* Change script order to enable testing flow.
* Added Usage and Troubleshooting sections.
https://github.com/QubesOS/qubes-issues/issues/2317