add ipv6 support to oo-register-dns

thanks to Magnus919bis on irc for the idea
Update oo_deployment_guide_comprehensive.adoc

yum install -y mongodb-server didn't actually install the mongodb package as a dependency, and I had to install it separately. Therefore I have added mongodb to the yum install line to save time/troubleshooting for others.
<docs> Added libmongodb to the yum install command for MongoDB
Bug 1021472: Correctly migrate cart dependency dirs
Security - BZ982824 add umask env for libra users in rhcsh
Fix for bug 1022948
rubygem-openshift-origin-node should own /var/log/openshift/node/*.log

openshift-origin-node/utils/logger/split_trace_logger.rb creates the default
files.
Merge pull request #4015 from ironcladlou/bz/1021472

Merged by openshift-bot
Merge pull request #4012 from abhgupta/abhgupta-dev

Merged by openshift-bot
Automatic commit of package [openshift-origin-cartridge-jbossews] release [1.16.3-1].
Automatic commit of package [rubygem-openshift-origin-msg-broker-mcollective] release [1.16.3-1].
Automatic commit of package [rubygem-openshift-origin-node] release [1.16.7-1].
Automatic commit of package [openshift-origin-cartridge-nodejs] release [1.17.4-1].
Automatic commit of package [openshift-origin-broker-util] release [1.16.5-1].
Automatic commit of package [openshift-origin-cartridge-jbossas] release [1.16.4-1].
Automatic commit of package [openshift-origin-cartridge-ruby] release [1.16.3-1].
Automatic commit of package [openshift-origin-cartridge-php] release [1.16.3-1].
Automatic commit of package [openshift-origin-cartridge-diy] release [1.15.3-1].
Automatic commit of package [openshift-origin-node-util] release [1.16.3-1].
Automatic commit of package [openshift-origin-cartridge-perl] release [1.15.4-1].