support for apache forking

[markAtAthena]

Our perl web service runs in apache mod_perl and it forks upon startup. I can't run it in server mode because of that as then each will try to open the same port and fail. And, if I run it in client mode where it reaches out to the IDE, the first connection works, but then when the fork tries, the IDE doesn't answer it. If I restart debugging in the IDE so that the first connection is dropped in hopes that it then answers the fork, the entire apache dies.

[hurricup]

See Camelcade/Perl5-IDEA#1771