fixes #899 - There are numerous typos and formatting issues with the code

added css grid and converted most pages to use that grid

views cleanup and added more operatingsystems icons

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

fixes #270 - host show page looks bad on IE or old versions of firefox

minor formating changes

CSS rework, aligned view on all pages
removed google JS from pages which do not require it

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 #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...

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