Merge pull request #20 from gpmidi/master

Suppress lsof warnings & Disabling lsof reverse name lookups (Thanks gpmidi!)
Tweak code comment.
Merge branch 'master' of https://github.com/Thue/rfwadmin
Auto-accept the EULA when installing (necessary for 1.7.10).
Add empty files banned-ips.json and banned-players.json to install.sh, to avoid (harmless) errors on first startup.
In the default server install skeleton, use the new .json files instead of the old .txt files.
Rm server.log file, which is now obsolete.
Since the logfile is reset when a new server is started, which is very confusing for the script, use screen log instead of server.log to observe start.
Fix warning on install if logfile doesn't exist.
Note a Debian bug in the README.
An Apache restart seems to be needed.
Whoops - error in screen_cmd.