Merge pull request #201 from sosiouxme/enterprise-1.2

Enterprise 1.2
<install> status from register_named_entries
Working around bugs in cloud-init
<install> fixes and explanation for HA MongoDB

* document the need to run the replica set config step after all
replicants are available
* try to catch error conditions with replica set config
* fix problem with adding port spec to replicants
* remove other "search" entries from /etc/resolv.conf
so that new non-FQDNs have a better chance of resolving
* minor rearrangement of docs, discussion of DNS setup
Merge pull request #218 from brenton/enterprise-1.2

Working around bugs in cloud-init
<oo-install> create with parity to master commit b8937be5f642cbdce94ad3f2d58cc0b7ca2cde63
remove redundant openshift-origin-cartridge-jbosseap from cart list