fix indentation
Disable the other MPM modules when enabling one of them

If you don't disable the other modules first, apache complains that there's more than one MPM module enabled.
use ip addresses instead of hostnames for allow lists

In the Apache 2.4 beaches of some modules, "Require ip" is used, and that only works on ip addresses.

The choice is to either set the default attributes to IPs, change the modules to use "Require host", or split the allow lists into an ipaddress and hostname version so the user can specify both.

I've just changed the defaults to use IPs.