Add a F20 WordPress_Native template

Port the WordPress Native template to Fedora 20.  Fedora 20 images
have a bug with mariadb which requires an ugly workaround for the
time being.

Change-Id: Ia3473d05ca756171d8720452790c21c8cac3df7f
Nested HOT template to deploy HA OpenShift environment

Template deploys HA set of OpenShift brokers (3), 3 nodes, Load Balancer
as a Service (LBaaS), floating IPs for all instances (including LBaaS VIP).
It also deploys Cinder attached storage for node failover and recovery.
Dynamic DNS is configured on broker1 and all OpenShift services are
configured.

Change-Id: If6d81988d47b70b995c5fc9cc308d36d5ae5bb1e
Support specifying which cartridges are installed on node

The openshift.sh script supports specifying cartridges installed. The
CONF_CARTRIDGES env variable support a comma-separated list or a class
of cartriges "all" or "standard." A prepended minus sign '-' in a list
of carts will negate the list.

Change-Id: I6ae0d29bc397b51a5b7353b8b51bf5d2b1fcba7b
Convert all params from CamelCase to under_score for consistency

Change-Id: If4f9d40fc266a33c4fd4ebee351b766fb5aef1f7
Remove openshift-enterprise-yum-validator

openshift-enterprise-yum-validator is a tool that performs a pre-flight
check. The installer performs this test and in some cases the pkg is
not availble until the installer is run and registration is done.
The validator version param is unnecessary.

Change-Id: I95a3209ab38a562814bfea97c2ce2b445ca8135e
Add session_persistence to LBaaS pool

Change-Id: I73fc502dfa47feeb510bea3e851cfa4fb44858b8
Provide full support for all repository sources

The openshift.sh installer provides support for RHN, RHSM and local
yum repositories. This patch provides mappings to env vars for
all the various options.

Change-Id: I8e1b27562d7800a07220e41a0d17459f0f44877c
Delay creating mongo replica set until other broker hosts available

MongoDB requires all members of the replica set be up when
initiating the replica set. This change delays the creation of
the rs until the other brokers have had a chance to reboot. The
openshift.sh script is used by setting the CONF_ACTIONS env var.

Change-Id: Id3d92c4a46b88b1816994c13a2c07dd33709d4d9
Tighten up security group port settings for broker and node.

Separate security groups were created for broker and node hosts.
Firewall rules follow documentation:
https://access.redhat.com/site/documentation/en-US/OpenShift_Enterprise\
/2/html/Deployment_Guide/Network_Access.html

Change-Id: If54f9b636e13679372bd566c8cc8dc6a08e4c7d2
README documentation updates

Change-Id: Iba0de05caea7a1f0a8055a6139ad3ecaaaa662cd