Fixes #204 - Remove AS from environments page

Merged import facility in Environment and Puppetclass controllers

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...

Fixes #240 - Clone operation highlights changes correctly

The clone operation no longer flags edits as errors. This looks better.

fixes #233 - In the "Show" page for a Host, Build link should not be visible when Unattended is false.

Fixes #179 - allow mass assignment of parameters and host groups.
Greatly inspired by Ashay Humane <ashay.humane@gmail.com> at 5c2e395c

Fixes #132 - Added a clone operation

This clones the AR, attaches clones of the
originals host_parameters and then renders the "new" action, ready for editing.

The host_parameters must not use validate_presence of :host_id when using nested attributes.
Created a hidden :nested attribute to the form to flag this behaviour...

Fixes #183 - Adds searchbar facility to hosts

Qualified the fact_selected partial
Added a reset button
Added popup help
Beautification and grooming

fixes #235 - Small refactoring of the media handling for operating system families: * Use URI class for any URI related operations * Added substitution for $version, $major and $minor in media path * Force use of http(s)|ftp|nfs URI schema: NFS shares have now to be entered in URI form: nfs://server/path/.../ instead of server:/path/.../