Support for non-daemonized process

[hesalx]

It's not possible now to run oversip under runit (requires non-daemonized process). Also, foreground process would be very useful during development.

[saghul]

Probably the same applies to systemd. A "--no-fork" option would probably be welcome, indeed.

[ibc]

Interesting. Let me handle it in the next days by adding a command line option not to daemonize the main process.

[colinmorelli]

Any update here? This also makes it a little tough to run in Docker. Is the fix to simply avoid executing the daemonize method with a --no-daemonize option? If so I'd be happy to submit a PR (very new to this framework so I'd rather confirm).

[ibc]

If you wish, please send a PR with such a command line option (after confirming that it works fine).

[colinmorelli]

Done - see #91. Appears to work in both foreground and background modes.

[ibc]

Thanks a lot. Let me please handle the PR in the next days.