Fixes #170 - implement usergroups

Added migration
Added tests
Added MVC files
Added the routes as well
Added the program logic and additional views
Added RESTful actions for update and create
Added validations to ensure that usergroup.name and user.login do not collide...

fixes #216 - Validate uniqueness of a parameter name for Individual hosts

fixes #237 - installing puppet from epel breaks if base image is not 5.3 or 4.9 release

• Remove active scaffold from hosts controller.
• changed default host graphs from one day for up to one week
• added dynamic dropdown boxes for host creation / edit page (e.g. for puppet classes, operating systems etc)....

fixes #200 - Remove activescaffold from the puppet groups page

family id can not be forced at this time, as it breaks many fact import operatings, fixing broken tests

Fixes #177 - Family concept

It will_paginate and handle searches
Added family support to Operatingsystem
More work will be needed to add family support to host manipulation.

fixes #199 - Remove activescaffold from the puppetclasses page, search functionality will follow

Merge branch 'feature-203' into develop

removing show action in places it doesn't make sense, and minor visual changes