fixes #325 - Retrieve a list of all puppet classes using the REST API

XHTML compliance

fixes #243 - When adding classes for in individual hosts, Adding then immediately Removing the class does not work

fixes #277 - add search options to puppet classes page

Fixes #204 - Remove AS from environments page

Merged import facility in Environment and Puppetclass controllers

fixes #200 - Remove activescaffold from the puppet groups page

reduce puppet classses per page

fixes #199 - adds a search functionality to puppetclass page

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

Fixes #175 - A link is provided to import classes and environments

There is now a link on both the environments and classes page which
imports any new classes or environments into Foreman.

fixes #151 - add show host page
Added a nested link to hosts to lots of controllers

Added some more text to the settings menu, removed some fields which are not yet required.

Add support for multiple puppet classes per host / operating system / environment etc
this should enable a proper dropdowns when creating the gui part that shows possible puppet class / operating system / env combinations

fix external nodes to actully work with multiple puppet classes...