patch from mike - fix epoll on fork thing.

patch from mike - fix epoll on fork thing.

This is an attempt to fix the epoll/fork() issue reported to me where
we end up with a single epoll fd shared between two processes after  a
fork() in E.

I've tested with elementary test in epoll and non-epoll combinations,
and all appears to be well.  Please check it solves the issue you saw,
and reformat the code as you see fit... ;-)

git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/ecore@53670 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33