ovpn: 24 hours after I develop this, Asus has a new GPL where they implemented something similar :)  Reverting so I can use their implementation instead, for simpler maintenance.

Revert "openvpn: more granular state values, providing feedback on automated key/crt generation"

This reverts commit d8c52ec9f225ba6d193bd40551da905d1535b1f9.
ufsd: this is dynamically built at compile time
ovpn/webui: Adapted to Asus's improved state report
ovpn/webui: Improve support for Asus's state report
webui: Fix saving editing server keys
webui: Only restart currently edited server instance if it's running (fixes inability to clear an existing key as it would be auto-regenerated)
webui: Last commit was disabling restart of instances for PPTPD instead of OpenVPN; Showing Ok instead of Save to make it clear that clicking on this does not immediately save certs
webui: Disable OpenVPN Client support on the new Client page as Asus's code ddoesn't properly support both instances yet
webui: Rename VPN Client Details page to OpenVPN Client
ovpn/webui: Added Asus's ovpn import option to OpenVPNClient page; Rearranged layout a bit
ufsd: Added gitignore to ARM section