Fixes #609 - Orchestrate puppetca operations

This also includes adding support for a puppet smart-proxy target type
and providing migration support
Updated to provide backward compatability for host and hostgroup objects
Now terminates the build and incorporates other fixes...

updates host forms

added css grid and converted most pages to use that grid

views cleanup and added more operatingsystems icons

fixes #334 - Clone a hostgroup

Fixes #649 - Makes the operating system settings for hostgroups obey the :unattended global setting

Based on the original patch from Justin Sherrill.

Fixes #631 - Adds the ability to set default values for hostgroups, which
are automatically applied when creating a new host (and selecting that
host group), and allows for templates to be rendered with those default
hostgroup values

Fixes #366 - Redmine authorization port

This is a major feature which provides RBAC authorization within Foreman
a mental note to myself - never ever work on large commits

XHTML compliance

fixes #273 - Provide a "Getting started" front-page