Bug: p2p configuration seems to be messed up

[Kixunil]

Describe the bug
auth doesn't seem to be used in p2p branch, only cookie_file.
Moreover the original plan was to turn use of cookie into hard error with a nice message before removing it entirely.
Do we still want to do that? I think it'd be nicer for at least one release.

To Reproduce
Steps to reproduce the behavior:

1. git checkout p2p
2. vim src/config.rs
3. /auth
4. "Pattern not found: auth"

Expected behavior
auth is used instead of cookie if specified (error if both are specified).

Additional context
Was just thinking about turning it into hard error in 0.9 - looks like we're thinking the same here.

[romanz]

Oops, good catch - thanks!
Will fix.

[romanz]

Should be fixed in #442, please take a look :)

[romanz]

Log verbosity is not propagated correctly: #446 (comment)