Ensure that all index views and controllers are consistent

Ensures that all controllers use @search in the index method
Ensure that all index views use pagination

Fixes #248 - Generalise tab management and search facility

The search facility is now available from all controllers.
The search bar is only displayed if there is a partial
<controller_name>/_search_line.html.erb available.This partial also
describes and implements the possible search parameters for this controller...

fixes #241 - email notifications don't work when mail relay requires domain name

Fixes #204 - Remove AS from environments page

Merged import facility in Environment and Puppetclass controllers

imported redundent line - refs #232

Fixes #232 - Removes AS from Users page

The password verification test has not yet been implemented but will get done in AuthSourceInternal fix
All tests now pass These tests now work whether settings[:ldap] is enabled or not
Plus whitespace fix

Fixes #258: Change Environment for multiple hosts.

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...

updated incorrect url path, refs #179

fixes #257 - When creating a new hostgroup, it fails if I add a parameter when creating