Trim hostname, username, etc when saving VPN details

[rm-hull]

I had a situation where I had saved a VPN configuration with a single space after the hostname, and it refused to connect with the following logging:

INFO:   Start tunnel.
INFO:   Closed connection to gateway.
ERROR:  connect: Connection refused
INFO:   Could not log out.

I knew the configuration worked as it was copied from my openfortivpn config.

It might be worth trimming whitespace characters from fields like the host before using them or saving them.

[theinvisible]

Thanks, its fixed in current master branch and next release