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 broken links - refs #366

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

XHTML compliance

fixes #273 - Provide a "Getting started" front-page

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

removing show action from arch page too

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