Change default iptables config.
Merge branch 'master' of https://github.com/opscode-cookbooks/apache2
Fix cookbook under RHEL so Apache doesn't break on yum updates.

The README needs to be ignored, since it will keep getting added back on each
upgrade. So only include conf.d/*.conf.

Similarly, all the other conf.d/*.conf files keep coming back on updates if
they're deleted, so instead of deleting them, set them blank, so yum will leave
them alone.