Update the setup doc with new steps and links

* Add some additional config to http config. I had to add these to get
  it to work
* Update the discovery image links to latest nightly, and reference that
  in the pxe config
Merge pull request #294 from ares/master

Raise with some description
Add Fencing support

Using deface gem to override Foreman views.
Add attributes to whitelist for Safemode::Jail
Show expose lanplus as a boolean
interface assignment was broken for multiple hosts
Merge pull request #296 from sseago/fix-nic-assignment

interface assignment was broken for multiple hosts
BZ# 1139792 - Fix cinder checkbox validation

When starting a new deployment, the cinder checkbox validation was not
operating correctly. This now display a proper error message and hilites
the tab.
Merge pull request #297 from bcrochet/bz/1139792

BZ# 1139792 - Fix cinder checkbox validation
version bump
support for additional ceph params
Remove LVM from cinder backend choices when deployment is HA

This will remove the LVM choice from cinder backends if the deployment
is an HA deployment.
Merge pull request #295 from ifarkas/fencing

Add fencing support
Merge pull request #300 from bcrochet/remove-lvm

Remove LVM from cinder backend choices when deployment is HA
Merge pull request #299 from sseago/new-ceph-params

support for additional ceph params
version bump
Display network traffic type for each subnets on hosts/edit
Do not validate equallogic backends unless selected
these params should just be static values;

they don't change based on user inputs. Without this, we're
getting format errors when an array param has a value of
nil instead of []
Merge pull request #303 from bcrochet/fix_eqlx_validation

Do not validate equallogic backends unless selected